LSA tuning help

I have an 09 G8 GT with a stage 1 blower cam and LSA SC swap. I have the maf pretty well dialed in with no idle issues (800rpm) but when i switch over to VE tuning the car barely runs and dies. If it stays idling then it dies when I put it in gear. I got the car running pretty well when it was cam only on both VE and MAF but after adding the SC it feels as though its impossible to get it to run and if I do get it to run i keep logging and ans flashing changes and the VE table never seems to want to get under 5% of error. I am running the 2bar OS with the axis at 250 KPA. Why is this so difficult to do?

I would be interested to see copy of your map if you're happy to attach.