I'll stand by what I say with the MDS .68. It is the best kept secret out there.

Cyclic Hardover, the changes of getting a bad running MDS .68 are much better than a irreversible valve going bad to cause an actual cyclic hardover in a heli, meaning very slim.

Cylclic H, go ahead get yourself a NIB MDS .68 for your next .60 sized airplane. Follow a couple of tips (flush out engine before first run, take the time to break in the hard chrome cylinder, never run more than 300 rpm shy of max lean rpm, use 10% nitro for first couple of gallons, use an OS 8 or idle bar plug) and you'll be extremely happy or I'll buy the engine off of you. I don't work for Horizon (the MDS distributor), just a satisfied customer who'll put his money where his mouth is.

Here are some threads on the MDS .68 engine

http://www.rcuniverse.com/showthread...ghlight=mds+68


http://www.rcuniverse.com/showthread...ghlight=mds+68


http://www.rcuniverse.com/showthread...ghlight=mds+68

http://www.rcuniverse.com/showthread...ghlight=mds+68]