Write in for '3.5e'. IT sounds like software, not a role playing game. The name is revised, not 3rd and a half edition. If you need an abbreviation, why not 3eR?
How can player characters in a DM-controlled campaign be twinked? I thought "twinked" was when, in a MMORPG like EverQuest, a player of a veteran, high-level character gives undeserved gold and magic items to a player of a new, low-level character... or something like that.