just got off the phone with Keith Baker to get on the list for the 110 Extreme. He said waiting on parts due in Feb, I will see my engine in March if there are no further delays. He said this wasnt the first time the supplier has delayed, so March might be optimistic. I hope its worth the wait, I would go for the DA, but I dont want to hack the firewall on my airplane as its already set up for the BME. If you're looking at the BME 102, the DA is a much more powerful engine (reference RCFAQ rpm numbers), if you can wait for the 110, I think it would be a real toss up which one is better, I'd lean toward the 110 for the weight savings, but you're dealing with low serial numbers.... hehe put me on the fence with the crowd.