I have small hands so i don't mind the smaller RES C handles. If you do have larger hands the mutts would be a better choice than the Y's because the choil makes for a better grip.

I much prefer the large RES C handles to the larger Mischief handles. I had an M6 and really did not like the handle AT ALL. It was way to heavy and had an awful feel to it. The Hookguard was so much better. The RES.C is also substantially lighter. If you see my previous post with the weights compare the SH-E to my DFLE?
Even though the DFLE has 2 more inches of blade it is substantially lighter.
The straight handle was even heavier although I am not sure about the fusion.