You got it dude. I buy the SK 50's for 59.99 from kangkeusa.com and they start first flip and require only setting the high speed needle after breaking in. There are soooo many far superior engines to use than to spend so much time tinkering with these GMS engines. I like flying not crashing because they have to be tinkered with so much! I do have a Thunder Tiger 61 but have not built a plane for it yet. I like ASP and Magnum engines as well as I have never had any problems with them.
ORIGINAL: XJet
Yeah, I just keep buying Thunder Tiger 46Pros instead. They start first-flip, are a breeze to tune, run forever and produce excellent power.
Consider the difference in price between a GMS47 ($65) and a TT46Pro ($74) and I'm more than happy to pay an extra $9 for that peace of mind and extra quality/consistency.
You can burn more than $9 worth of fuel just trying to get the GMS's needles set properly and if you factor in the time/effort required to modify the GMS for *reliable* operation, then the TT is *much* cheaper in the end.