ORIGINAL: Alex7403

Hi,
I must say that I’m spoiled flying only OS’s 46 LA, 46 AX, 75AX, 91 FX
Never had a dead stick without a good reason for it.
My OS's flip start every time, while others flooding their motors.
Maybe building this winter a Goldberg Chipmunk 60 (6-8 lb > 9 lb more likely)

Thinking if to get the tower hobbies 75, it’s priced well and should pull some 7 lb airplanes I have.
Can the tower 75 accept some kind of pitts muffler or similar, will the OS 91 FX accept the same muffler?

If I need more than one gallon of fuel to break it in its not worth it.
If I have to monkey with it to adjust it every week of flying its not worth it.
My choice is if to put 91 FX on a 60 size airplane or to get the tower 75.

How reliable is tower 75?

Thanks
Alex