Okay, any input on this topic would be appreciated. What is the fit and size comparison of the Crankcase vs Fuel Cell? The FC is a darn near ideal fit....smidge loose side to side and tad too much vertical.....the Gascan i could never wear, way to narrow vertically and way too tight. Now some things ive read and seen imply the Crankcase is right between these two being a bit tighter and vertically narrower than the FC but above the Gascan....ive tried the Crankcase on twice and my experience supports this assessment. However, im also finding posts that suggest the Crankcase is as small, tight or even tighter than the Gascan. Again, my trying on supports its a middle ground between these models.....opinions or even comparable measurements would be great.