Griphos: If I have 60, 80, 100 wedges, will that work well with this set?
60 - 80 - 100 is preferred by many (see the top Clevelands), another spacing being 50 - 75/77 - 100 (ATV).
As he said, include the punch into your thoughts. A punch from that 115 yds PW might reduce the gap.
Concerning precision and forgiveness, both have their standing.
Forgiveness is important for players who rarely hit the ding line, and precision is good in any situation.
I want to support one short remark on balls. If you want to spend some credits, change to custom balls. Even the cheapest will improve your game, but it will let your purse bleed since they wear and get lost, thus have to be replaced on a regular basis.
I'd encourage you to try a few types from the cheapest up. B-ES will wake your desire, Tour-SD are a budget gem, Srixons and lvl33 Callies are visible improvements. Becoming a top player, you may eventually need the top balls for top ratings in spin and distance.