MFR Precisions Hammer question

[Sigma85]

I have Minefactory Reloaded set to use vanilla recipes, but I have Gregtech installed. I can't craft precision sledgehammers, I assume that its GT. But without the sledgehammer I can't craft the Block Smasher, as well as cheaply rotate my MFR machines. Can anyone confirm that it actually is Gregtech stopping the hammers from being crafted, and possibly point me to any config options to fix this ? PS.: I have Minetweaker, but it would seem that somehow, even with it loaded last ( i renamed it zzzzzz..., and disabled the GT config option to load it last) some of the changes made by Gregtech still cant be overridden somehow...