I'm interested that some are still on the harley compensator. Proves that most of the issues were to some degree related to lubrication of the sliding cam etc. For me the centa has been the only upgrade I had to pay for and it was well worth it. An early 2012 chassis will break at some point as some of us were witness to at a meet. Morgan were very good and quick to change mine and I have a spanking 2014 chassis to prove it. My second bevel box is completely quiet and the only niggle left is the sprocket wear. I'd happily go for an early car with all the upgrades. I do think you need to buy a 3W with eyes wide open and understand the beast for what it t is. It's not a Caterham or an MX 5 ( ok so the most reliable bit is) it's a cycle car. I do wonder if ex bikers whilst sometimes a little frustrated do 'get' these beasts more than those used to 4 wheels. I await being ripped to shreds for that last comment.