If you go for a Fusion, make it an absolute requirement that the AirCore is a Made in Canada version. They were making them in Mexico for a while and there were a pile of problems with the seams.
I was pouring several cups out of the legs on my Mexican-built core (not including my soaked undergarments) by the 3rd dive on a new suit. The canadian replacement has passed a "me floating in a pool test," but has yet to be used on a dive.
At least 2 other folks here (
@Marie13 and
@Zef) have had warranty replacements as well with less extreme leakage in the oruginal MEX core.
I have a Fusion (Tech version) and (other than my unfortunate semi-dry experience) I like how the suit dives for me. That said it is my first drysuit, so ...