I've had R/R failures on a '99 VFR 800, '00 VTR 1000, and on my current '00 Blackbird (failure at about 20k miles). All were replaced with OEM finned units (with motherboard fans attached). Presently, 2 days after a 200 mile ride, my battery was flat; should have been fully charged after the ride. After being re-charged for a day on trickle, voltmeter showed 12.3 with no increase on revving. Naturally, the R/R is suspect. Relevant posts mention the Yamaha R1 and Shindengen R/Rs as preferred replacements; what's the consensus? If the R/R has indeed, failed (I haven't yet had the whole system checked), does anybody have a good supplier to recommend?