If I remember correctly you make the larks head on the kite side and not the lines them self.
Yep, this is correct.
I've had mine for a few years and they have held up fine. No need to go any bigger I guess.
Yeah, I remember when I first got my envys, I was wondering which side connects to which because there didn't seem to be any knots to larks head around! But they are there, and have never failed, so it works fine