The best advice is to find your local Titleist rep and get fit. I went to Oceanside and got fit and it was amazing!

Getting fit would always benefit you more, and can be done at most golf stores. I use golfsmith/ golftec myself when I go to get fit for clubs. Some ranges may even be able to assist in getting fit. Choosing whats best though for bounce all depends on the conditions you normally play such as soft or firm, and your turf/sand interaction such as do you tend to dig or sweep the ball. For loft I usually suggest looking at the distance gaps between wedges and how many wedges you are going to play. For instance my setup is a 46.08, 54.10, and 60.04 for three wedges and 46.08, 52.08, 56.10, 60.04 for four wedges. Hope any of this helps.

It's best to be fitted by a professional. I myself go from a 50/08, 54/08, 58/07. I use a S grind on my 54 & 58 because of my swing type & surfaces I usually play on here in Kansas. I prefer a lesser bounce as well. Get with a local fitter and they will get you what you need.