The pull increased when I did this too. Better airfoil shape, but necessitated a little more wing pull in to increase the pressure behind the nose. It really shows the final shape well. Handles on a shoestring. A piece of broom handle around 25cm long will suffice.
Drill holes a couple of cm from the ends and countersink a bit, then saw a slot up to the holes.
The brake line ends need to be around 30cm and knotted every couple of cm for brake adjustment for four lines. Back Diagram of the Lark's head you can find on Simo Salanne's site. It can help removing the larks head if you tie a thumb knot at the last half cm of the loop. It gives something to get hold of. The earth is flat, pigs can fly and nuclear power is safe.