72.3 for twin O/B's on a 33' is damned impressive. I've been saying ever since the O/B technology got to the current level that times will change. 1200lbs lighter than same hull w/IO's, the sun lounge now becomes your shed, better fuel economy etc, etc.
When I bought my first twin O/B 24' Sonic 12 yrs ago I figured that about 25' was the limit for twin O/B power in that day for what I wanted.
W/the new O/B's it's now beyond 30' for twins and 35' w/triples.
Now go with 300XS's or E-Tec's and drop another couple hundred lbs and see what happens.
Well done Active Thunder! Now who will be next to follow