No, RPS would no provide any benefit, none at all.
If you've got an edge tremolo, 2 things that you can do to prevert string breakage is to watch out for burred edges on the trem saddles, and also lubricate the saddles with some pencil lead, chap stick or whatever.
IMHO string breakage with locking trems is inevitable, unless you're able to fit on Graphtec string saver saddles. I've been using Graphtecs on my musicman luke, I've never broken a string! They're that good!
But I don't think they have a variant for Ibanez bridges.