So I was reading the March '15 issue of GD and Chris O'Connell has an article on there on short game and essentially say's not to pick the wedge you wil use for a shot just off the loft of the club but to make your choice based off the bounce the shot needs. Uphill shots you choose a high bounce (probably lower lofted) club and let the uphill add the loft that you lose by going with the lower lofted club. The extra bounce gives you some "help" in that you can hit behind the ball a little and the bounce keeps the club from digging in immediately. Whereas a downhill shot needs a lower bounce (probably higher lofted) club. If you use a higher bounce club, you risk the esge of the club hitting the ball and hitting the low screamer. The lower bounce enables the club to get into the turf quicker and under the ball and the higher loft is countered by the downhill shot.
Anyway, interesting approach to selecting a wedge for a specific shot. I've not thought too much about the bounce a shot condition needs, I usually just grab the wedge I think I can hit the shot with. Maybe I'll keep this onhand for some testing once the spring gets here.