As if I didn't have enough work on my hands...
My personal XP decided to eat a MAG cylinder at some point last season. I'm not sure what caused this. Luckily the walls aren't scored, so I may be able to get away with a new piston and hone. (Story of my motor life recently). The other blessing in disguise was finding the crank shaft is worn slap out- worse than my parts motors! If you remember, this was an untested junkyard motor, so I did get some time out of it. So now I'm trying to decide what to do. I have 1 parts motor that may have a good crank, but that its still TBD.
My pride is kicking and screaming when I say this, but I'm entertaining an SBT motor right now. As much as I want to build some bulletproof race motor, time and mostly money are against me there, so that makes the SBT route the most cost effective option at this point.