Torqueflite taking too long to shift into 2nd gear

727 torqueflite reverse manual valve body. Builder cranked up the pressure a little for me for firm shifts.
I have the shift light set to 6400rpm but my data log shows that the shift happens at 7200 rpm. It feels to me like it shifts right when I move the shifter, which I am banging on pretty hard (B&M Megashifter). Been like this ever since I switched to EFI that has datalogging (about 3 years ago). If it was slipping I think I would have material in the pan.
2nd to 3rd shift happens at same rpm as shift light. I want shift at 7000, so my workaround has been to lower the shift light to 6400 and basically guess at the 2nd to 3rd shift.
I do not want to spend money on a tach with multiple shift lights or spend $$$ on a different shifter. Is there a band adjustment or something else I can do?
Gen3 hemi approx 700 crank HP. Thanks!