In regards to setting your car up using an SPS3 it's best to start at low settings and then build up, ideally monitoring sensors using VAG COM to see what's actually happening. Bear in mind if you set too high a setting for the given conditions/fuel then the ECU will pull back the adaptation levels these will remain at low levels until they are reset (TBA or alot of driving time) as such you won't benefit from altering settings if you've gone over the top to start with. There's no be all and end all setting for certain fuels as conditions change daily, we can recommend timing settings though. 3-5 for 95ron, 5-7 for 98ron, 7-9 for various race fuels.
Hope this helps.