Out of these two models, which is the ideally recommended? From what I was reading it seems both are well made and will last along time. Is it correct the only major difference is that the 25XX Blu-Ray doesn't need to be re-married and can also be removed if it fails and that CFW only possible on models pre 2011? And also that the CELL (not RSX) IHS on 25XX and newer has its lid soldered and epoxied down and can not have a delidperformed. Is the soldered issue present on ALL 25XX even very first product run of Q3/Q4 2010 models? Thanks