Jim,
I agree that the MO3 parts are easy to obtain. I suppose over time they will slowly get harder to find as some have moved onto the MO5 and Tamiya will concentrate on providing spares for the MO5.
WRT to choosing between a MO3 or MO5 it comes back to what is being used at the local track. I was reasonably quick with a MO3, but personally for me I am faster with a MO5. I think both cars can be made to work very well. I believe that the MO5 is a little easier to drive for a newbie than the MO3. Having said that though, I have seen both chassis types be real PITA's to get right.
I think more are running the MO5 now than before, as most have sorted the initial teething set up problems and passing on tips to others who are changing over.
Mr RCTech,
Unfortunately some of your tips will make your car fail tech were some of us race. I still look forward to reading your hints and tricks.
Bob,
The new CVD's sound promising. I hope to hear more from you regarding durability.
Perhaps I should consider off loading my MO3 kits and spares. i have a few that are now sitting around in boxes unused.
Regards,
Calvin.