I don't always agree with Sig -- but this time he is dead on the money. The guy said money is tight -- that means no OS in his future, particularly a used one -- they sell for stupid prices. Stay with the question & answer it -- he wanted to know if GMS were OK -- not if he should buy OS.

My experience with GMS is mixed at best -- two GMS 47's & two GMS 76's. Neither type was inspiring. The 47's were certainly powerfull, but neded carb re-work to raise reliability to only average levels. The 76's aren't even particularly powerfull, but also have issues & needed carb re-work as well.