Howdy,
So, got a 3/4 Fire and tried it out last night. My impressions are coming from long-ish time use of 5/8 Fire...
I didn't find it a big change at all. In fact, it was close enough to the 5/8" Fire that I'm not sure I'd be able to tell them apart in a blind test. Other factors like ice hardness, how recently they were sharpened, etc. etc. I think would have a bigger impact on the feel.
Strangely enough, if anything I thought I could feel my edges more with the 3/4 Fire than with the 5/8 Fire. I'm assuming that this is just because I was paying more attention to that, since I'd made a radius change and I use the CXN holder so back to back tests are a bit harder to do than with the quick change holders.
We'll see how it goes over the next few hours of ice time, but at least so far I'm liking the 3/4 Fire fine.
I should note that I'm an old-ish guy that just started playing 4 years ago. So maybe my skating just isn't good enough to pickup the differences and someone else would find them more significant!
Mark