I am a fan of +P ammo but in .45 you pick up about 60fps at the muzzle over regular Federal HST. I don't know that whatever you hit with it will be able to tell the difference but the thought of that little extra zip is compelling.
I personally prefer Hornady Critical Duty +P with a 220 gr bullet that gives a little better performance than the Federal but again I don't know if the target will know the difference. I have shot large feral hogs at close range with Federal, Hornady, and Sig hollow points and all resulted in a DRT hog. My 10mm with Sig V Crown also drops them like a stone. I really don't see any noticeable difference in recoil between the +P and standard defensive loads.
I would not feed my pistol a steady diet of +P (that would be a pricey proposition and a little hard on the gun), I generally shoot up my +P carry ammo and replace it with new twice a year and shoot standard loads for practice.
Try out some defensive loads and see what works best for you.
Especially at a buck fifty a round60fps on 230gr works out to an extra 53 ft/lbs energy, assuming 850 and 910fps.
The difference between a tap of a finger and a firm poke, approximately…not going to be noticed on the receiving end. Practically, the extra velocity tends to give slightly better expansion, but slightly less penetration as far as permanent wound channel is concerned…pretty much a wash.
I’m not saying you (or anyone) shouldn’t use +P, of course; but I think in some cases it’s definitely a case of diminishing returns.
When you can get it from theammunitionstore.com in 50 rd. boxes at a decent ( for the times) price it makes it less painful. I'll stick with the regular LE HST 230 gr. though.E
Especially at a buck fifty a round