be careful with superCID. there were reports of bricks with ville and evita supercid devices when folks attempted to OTA.
having said that,i generally keep superCID because i get a kick out of running different carrier/regional RUUs. im just pretty careful with NOT allowing OTAs.
if youre not crazy like me,and intend to flash alot of RUUs,its prolly better to stay on your carriers or developer edition newest firmware(hboot,radio,etc) with matching cid,and then just change custom roms in recovery.