Rather than filing a chamfer I was able to hold the pin using needle nose pliers and then LIGHTLY tapped it in using a SMALL hammer. Once it is started in the first pilot hole it will guide itself so you can remove the pliers. Remember not to push it through too far before you slide the bell crank in and lining it up. Then continue to lightly tap the pin through the rest of the way. Be careful not to hit it too hard as you don't want to risk deforming the outer casing of the unit. Hope this helps.
Agree with the bear, I use the glider release in my sbach tow plane. Works great. We have over 50 tows with no issues. We are towing 2-4m gliders with a pheonix models sbach 1.20 fitted with an Irvine 1.50 glow motor. We have also got a 50cc extra and a 40cc yak using this tow release with great results.
No it doesn't but I use nylon coated fishing trace (20Kg) which works very well with gliders up to 7Kg. I use a weak link of 5Kg nylon fishing line that breaks at around 4.5Kg with a simple knot, this protects the glider and tug from snatch loads. The tow line is low stretch 20Kg with swivels at both ends and ping pong balls at the glider end to hold the line post release. Line length around 20m. I hope this info helps.