Beakybird....2 fills or 4 fills, but what about your PSR 740 having styles of only 2 bar loops....surely this is the repetitious part, but you have not commented on this. Korg styles are usually 8 to 16 bar loops plus they have 6 chord variation types playing different riffs, so the style changes depending on the chord played. With styles like these the only 2 fills thing is not important.

Graham UK