no too worry my friend, all my RG necks have not warped since the day they entered my domestic premises. 8)
yes, Ibanez RG necks are thin & prone to warping, but that's half the story. in fact, ALL guitar necks warp under certain conditions. for Ibanez RG guitars especially, they are more prone to warping if:
*you lean them against the wall/ lie them down flat on the ground (applies to all guitars with tilted heastock). PLEASE invest in a guitar stand...
*you expose it to constant temperature changes-
1.if you are in an air-conditioned room & you have your air-con on/ off constantly, it's gonna affect your guitar's neck.
2.if you transfer your guitar from a warm place to a cold place (vice-versa). eg: your air-conditioned room to playing a gig in the middle of a hot afternoon/ from your warm car boot to an air-conditioned jam studio
**however, please note that it's a warp concern only if you repeatedly expose your guitar to constant temp changes...
*you equip your guitar with a thicker gauged string set, Ibanez RGs are equipped with a set of .009 in the factory