I have an FX .46 that is 3 years old and still running strong. This is my most used engine. All you have to do is look at it to see that. It is stained with castor from the Omega fuels I use in it. No problems with the liner peeling. It is not the fact that it is nickel as there are many engines that use the ABN style of liner and have no problems. I believe OS might have been using a softer alloy of nickel than the others and the problems surfaced when the engine was run lean especially when using fuels that contain fully synthetic oil. Of course this is IMO.