So, I got all this stuff to teach myself to splice, and am attempting a tuck bury eyesplice on 1/8"(3mm) vectran 12 strand. I'm trying to insert the fid (1/4", the smallest I have found) into the core of the line, I can get the fid easily slips into the core about an inch and a half, and it then seems to bind up, much like the Chinese finger splint trick. It seems like the fid is just too large in dia, is there a smaller size needed (available?) for this size line? The fid is brand new, Samson. I've even sanded it down w/ 320 grit so it's real smooth. Is there a trick I'm missing here?
Thanks for the help!

Dave