Had to add another thread here and give a good review on cylinder flutes.
I picked up a 97 in 44 Special that came with a fluted cylinder. I liked the looks, but wasn't thinking much of them until I got it to the range. Proceeded to find out how awesome they really are.
Been working out hard this past year with a unfluted 97 in 41 Mag. During summer months that cylinder would get hot during extended practice. Mix it with sweaty hands and a little residual CLP and unloading kinda sounds like:
*click*...tink...ouch...*click*...Ouch-hot...tink...*click*...h-h-hot...OUCH...tink...
Then gotta fire up a smoke and let'er cool off a bit.
The flutes on this 44 Special made turning the cylinder a lot easier. Granted the 44 Special didn't get hot (with my loads) and it was chilly out, but I'm definitely a believer in flutes now.
Maybe I'll bring the 41 along this winter as a hand warmer in between workin' the 44 Special.