OK - in the interrest of faIRNESS:
Quick vol change for seq or arranger - now ok
search during playback - now ok

The score is almost tied at this point UNTIL - ?!?!?!?!?!?!? The tempo lok is still arratic. This must be an anomoly, because even the cheapest little Casio's lock tempo during playback of styles.

Try this:

Swing group - start with f6 or f7 style (forgot the name) it's 120BPM I think ... now lok the tempo, and select f8 - mine changes to 140 ... try f10 and it jumps to 160.

This simply will not do fella's. If this can't be fixed - I can't use it. (Sorry dan0)

Try other units, and see if it happens .... maybe mine is just a fluke .... in which case, I'll have to throw it back until it grows up !