just to give you an update, i never even got the job that the shop recommended done. Personally, i felt they were shady, because I searched and searched for resources online about "element socket" resolving the xenon issue but nothing came up anywhere.
this xenon has a mind of it's own by the way. it's been working fine since i've posted about this some time ago. based on my experiences and what others have said, it seems possible that weather conditions play a factor in this off/on xenon issue.