wetaline; what kind of line you are using.mono.or
braded line .went makeing a knot ,be sure that all wraps are laying neatly and formed to specifica. when drawing the knot .always do it slowly and with even tension.doing this ensures konts lay snug and tight.
I use a knot called the perfection loop, its a little tricky to tie but it wont slip and its a 90% knot. there is also a knot similar to the rhodes knot but you take two turns around the standing line and then run the tag end back through the loop.