whats the diff between maya's ik solvers? the rp and sp thing? which is most used and for what? and someone told me about constraining the twist manipuaotr ro a locator so my joint dont flip erraticly......how do i do this? any help would be lovely ill post the scene or pik of the rig im doing...si that u guys will see what i mean by flip....and lastly...how do i make the manipulator for the twist plane thingie larger?