Hi everyone, I purchased a new pneumatic gun a seac asso 90 for experimentation. The mass of the 8mm stock spear, head ,spring and slide ring was 370 grams . I had a spare chromed and threaded 7mm high carbon spear for my usual use cyrano 1100. Both ends were docked, a taper suiting the seac piston ground and a new flopper attached. A 2.5mm spearline hole was drilled 170mm back from the flopper. 1.7mm mono was passed through said hole and crimped back onto mainline, making an 80mm loop length. Total weight , 318 grams. Also, I machined and glued, a delrin 7mm sleeve to reduce the muzzle slop of the spear. This blew out on the second shot. No loss . I was interested to see this arrangement of slideless thinner spear on accuracy. The full range of the above from muzzle to spear tip was 4.8 metres. Results- (target- a golf ball size piece of shale in a sandy bottom 3 metres from muzzle) first shot hit it, second, third and fourth shots either hit it or were extremely close. I also noted the gun was much quieter. I had one tangle, I had crossed the lines when going from muzzle to line release. I thought I would try it anyway. Yep, tangle . The spear was very fast to the end of its range. An interesting experiment. I will try a stiff 1.5mm dyneema that is dipped in molten candle wax next. Cheers, Adrian.