I've been using the +P's for about a year. I'm in the same boat as you - I put the bow down for a number of reasons and years and picked back up about a year ago. I have no analytic comparisons to offer you. I can tell you I've shot 6 hogs with them and 5 were fatal. The 6th wasn't a miss. I put the arrow through the pig and had meat and blood on the arrow but watched the pig running with the heard and after 200 yards there was no noticeable loss of stamina or speed from the pig, so I guess I just missed vitals.
All in all I like shooting them. Hope this helps.