The toy does indeed suffer from GPS. One part of one of my Grimlock's foot has snapped off and I bought a reissue Dinobot from Soundwarp hoping to salvage part of it to fix it -- only to discover that it's attached in a way that cannot be easily disassembled with a screwdriver. I could think of no other way to open up that leg, so I ended up selling off that Dinobot reissue to roller for a cheap price.

Anyway, the point of my story is that Grimlock does suffer from GPS, and it seems the most fragile part cannot be easily repaired. (T_T)

Just as well I already have like 3 other versions of the Dinobot mould (original Dinobot, Telemocha reissue and Hardhead) - I just wanted Grimlock for the same reason you do SofaMan. It just bugged me that I had all these other versions bar him. Well, now I'm missing Masterpiece Grimlock too, but hopefully Hasbro Australia will release him here.