Called into Electrex yesterday (they are just up the road from me) to get them to test my VFR800 FiX reg/rec (updated OEM) which was misbehaving. It had done about 20K and was not giving full output on one phase. The technician just mentioned their new version was a MOSFET design and would be a very reliable replacement. Having read about the Shindengen FH012AA MOSFET regulator which everyone seems to recommend, I thought it strange that no one had mentioned any alternative MOSFET designs. Needless to say I bought it! It runs very cool, stable 14.5V output at all revs and smaller/lighter than original. Very pleased!