I think you are probably right, although we felt underpowered with the mast further back, and were a bit slower than our nemesis F20 until we raked forward a bit. We have been sailing quite a lot for half a year on her, and haven't had any serious breakages Attached are photos of the casting parts that remained on the gudgeons when we got ashore.
Opher Nacra F20C ISR1 F18 Cirrus ISR2 Sdot Yam, ISRAEL