RE: GMS Engine??
I have three GMS engines; a .32 on an LT-25, a .40 on a TH Kaos and a .76 on a 4*60.
They have been excellent engines for me.
I have, however, replaced the glow plug that came with the engines with OS A3's.
I use 10% nitro fuel.
The engines have been reliable and powerful.
Price right too.
Dave