Personally I've been extremely pleased with the TCM IOF-240B. Performance has been super and for those who've read my previous posts, I've had the airplane at 13,999+ feet and it still has respectable cruise and flight control performance. After flying nearly 5 hours to Montgomery AL dodging wx, I topped off the tank and it only took 24 gallons. Liberty has a winner as far as I'm concerned. If 100LL becomes an issue I'll look at my options then.
It's puzzling and unfortunate that a couple aircraft seem to be having issues. Those couple seem to be the exception. Hopefully you can break the code and get them purring.
I'm very pleased Liberty is selling aircraft in any market. It's still tough out there. A strong company is good for all of us. Hopefully they'll continue to ensure we in the domestic market get a few bones thrown our way with the occasional upgrade (like an external 12v power plug).
As always, I enjoy hearing from the rest of the owners.