What afr have you added to the target table, can you copy and paste the table to the forum so i can have a look. You can only put a target afr in the high throttle openings on the later Xt's and just leave the rest on the table with zero's.

The surging on the 07-09 models will just confuse the autotune and make a dodgy map correction, also you must block off your AIS system as this will show an overly lean afr at part throttle as well.

Simon.