Nothing more you can do, that hybrid is pretty maxed out for air flow and your injectors are maxed out. More fuel will make it smoke and more boost will kill the turbo. Time to enjoy 
If you are still on a stock clutch you will need a stronger one.
Bigger nozzles will just create smoke and no more power 1756 tops out at the power levels you have.
The darkside kit can be fitted on the drive but if you can get a lift for half a day it will make the job a little easier.
LSD in the gearbox, sounds trippy! But seriously, sounds like I'm at my potential limit going off what you've said there. How much would all that add up to? At least 5 grand? But I suppose the outcome would be amazing! After the blood sweat and tears...As above, you are maxed out now.
The next stage will involve pretty much everything, turbo, injectors, FMIC, single mass flywheel/uprated clutch kit, strengthtened selector fork, tubular manifold, larger bore downpipe, uprated map sensor, oil feed/return pipes, reprogrammed ecu/rolling road, LSD in your gearbox to stop you torque steering all over the place, uprated brakes all round, uprated suspension all round, uprated tyres all round.....and a race cam if you wanted. As you may know, this will be serious money. I know...I've done it.
Then it gets hyper expensive if you want to go down the engine rebuild route with forged pistions, uprated vales etc, ported head.
Consider how long you want to keep the car for and resale value. I'll never get my money back on my mods....but I'm happy with the choice I made to do the work.
ps Your torque curve rises, falls and rises again. See if you can get a map with a more even curve.
Where did you get it done?
PROFESSIONALLY CLEANED\OVERHAULED AND UPGRADED to GT1752/56 Spec Stage 3 Quick spool version (Uprated main bearings, 360deg large pad thrust bearing, balanced to higher tolerance,Larger high flow\Pressure Billet, extended tip Racing compressor wheel, capable of 240+bhp, with all correct engine modifications)
150BHP 2000 ONWARDS
GARRETT NO. 720855-1 to10 and 721021-1 to10
ENGINE CODE - ASZ and ARL
VW OE PART NUMBER FOR THIS TURBO IS - 03G253016Q and 038253016G
Cost depends on what you have done and where you go. I didn't go to Bobby and probably paid more at Darkside but I was unaware of Bobby at the time so didn't know.LSD in the gearbox, sounds trippy! But seriously, sounds like I'm at my potential limit going off what you've said there. How much would all that add up to? At least 5 grand? But I suppose the outcome would be amazing! After the blood sweat and tears...
I got my map done at a local place called MapTech. Where would you recommend?
Also, is 1.8 BAR as far as you'd go with that turbo? This is the description of the turbo and it was rated at being able to reach 240bhp+:
Thanks for the kind words guys
Paul - is that head on yet? - Looking forward to seeing what it does.
As for this hybrid tune i could make it smoother and smokefree but as mentioned already you will not get any more power.
If you have VCDS you could post channel 004 logs from 1500rpm to 4200rpm and we can see if there is any more head room for extra power.
PM the logs if you dont want to post.
Cheers
Cost depends on what you have done and where you go. I didn't go to Bobby and probably paid more at Darkside but I was unaware of Bobby at the time so didn't know.
When you upgrade your power your chassis/braking ability needs to match it too. bear this in mind.
The LSD makes the car feel more balanced. I can glide diagonally across the road with a balance of power just nicely. Great fun.
Bobby has my car now and is looking into fettling with the set up of turbo/ecu for optimum performance with longevity of parts also in mind. I totally trust him given peoples feedback and from meeting him and his knowledge and understanding.
Save you money and go for it. I love my sleeper Golf.
Dark side are an option still but I do have a friend at uni in West London so could double up the trip as a social! Win win. For the £120 (friend of a friend) I paid for dyno before and after including the map, its not bad at all! I couldn't just bolt on the turbo and leave it standard. That'd be just wrong... :LDarkside will do a good map too they are also a good place to go and know their stuff inside out. Being Barnsley might make it more manageable for you to visit too.
Sounds like your brake set up is ok.
I'm running the following braking parts
Octavia VRS Mk1 256mm Rear brakes, EBC Ultimax 256mm Ventilated Discs
DBA Street Groove 312mm Front Discs
EBC Red Stuff Pads All Round
HEL Braided Front Brake Lines
Ideal for road use. For track use a bigger brake set up would be needed.
At the mo I'm running 281 and 425ftlbs but Bobby will probably tone it down a little with longevity in mind so even a 270bhp drop will probably reduce smoke a fair amount.
My set up FYI.
http://www.darksidedevelopments.co.uk/golf-mk4-pd130-1-9-8v-asz/
Yeah like I said, I'd much prefer that! The place I went to do brilliant standard maps and usually specialise in BMW and Porsche's so I suppose its understandable that this map isn't as good. They tend to do a lot of efficiency maps too from what I've been told.That graph looks a bit messy.
A better map would make more use of what you have, peak power won't be increase much if any at all but you will have a much more usable torque band and more area to play with making a quicker car.