Finally I'm finishing my speargun! It is a 140 (56 inches) for blue water. I used Brasilian mohogany (Swietenia macrophylla) and Pequiá (Caryocar Villosum) and a Pursuit reverse mechanism. It will use 8.0 mm shaft and 4 bands. look the pics (they are not so good). I'll post more pics with bands and shaft later. Regards, Kleberson