How to make string faster???

Can’t figure it out… I get like 5 minutes per string… but some people who make them and sell them… either they have very little customers, a lot of time… or they have some way to make em faster…

So how do you make string fast? I think the problem is I’m getting tripped up at the knots… the string doesn’t always go through the holes fast, it slips after I’ve knotted it, it doesn’t hold.etc.

Anyone wanna help me speed up my string making? :stuck_out_tongue:

P.S. I use a sliding wooden block and a drill… if it makes a difference. With a center nail.