I think that's just the gearing software, mine downshifts more than I'd prefer; then again, it'll lug pretty low when chugging uphill. It's possible that yours is hunting gears but you'd have to compare it with another Talon, not all that easy since there seem to be so few of them around.
ETA: you aren't in Sport Mode are you?
obtw: Welcome to the site from the once great state of Colorado.
The link in my sig will take you to some basic Talon tidbits if you haven't seen it.