Easy now Neilor! I don't know what version of the Mech fonts you have, but I would bet you the clock loop is not fixed. I dont see how it could be with the current structure of these fonts. All versions of hacked fonts rely on a somewhat uncontrolable sequence of event to happen in the correct order and therefore no fonts have a complete fix for the clock loop. The success of the fonts rely very much of the environment they run in, and therefore some fonts work well on certain xbox versions but not on others. If you have a set of fonts that work well for you - congrats! But that doesn't mean the loop is fixed. I personaly never had any serious looping with any version of the fonts (reloaded, bigfonts, mech)
Edit : Of course I dont mean to disencourage any further development on the fonts Grospolina. It's just that the 'Clock loop is fixed' posts are numerous on this forum leading some leading some people to go ahead using them without taking precautions, like backing up hd key, eeprom etc.