The SC will not be as light as the Saito for sure. If cost is an issue and you are not a weight nut then go for the SC, I am sure they are reliable. A friend of mine runs an ASP 80 4C, its like a Magnum, there is no problem with the engine. I love my Saitos and would not buy an SC, this is a personal preferrence that is based on looks and not anything else (a bit of weight also). I would say SC engines are great stuff for its price, better than a TT even. My SC46 cost me only USD65 while a TT46 would cost about USD90.