Might wanna specify those sort of details in the original post in future, hard to give the right advice otherwise.
Personally I prefer the OSH model over the XST for airsoft, but obviously whether you wand the hood is a personal preference since both cost the same. If you want the ability to very quickly move the holster around or swap holsters on your rigs then get the RTi mount; obviously then the holsters costs more and you need the RTi mounts (which again can cost a lot more depending on the mount you want). If not then the direct bolt-on holsters are cheaper and a standard belt slide or paddle is only about $10 vs $30-40 for an RTi version.