I'm a horn player. T'bone was my college major.

My problem in arranger mode is, I KNOW what I want to play (and can generally play it!), the trouble is, chording gets in the way.

The big difference is generally, keyboard players are content to have the machine put the 'tricks' in for them, and are just happy that they occur at all! But horn players know WHEN they want the tricks, and it often coincides with chord boundaries.

This is very easy to test for yourself. Make an arranger backing sequence or SMF (or use your CS!). Now play a sax solo over the top with BOTH hands. Now go back and listen to how often you bent at the same time the chords were changing.

If you are getting the sax part realistic, it will be almost every time you change chords!