Good stuff Guys. Good tutorial fishy. I wish you delved into that 1.5mm screw head a little more in depth. The spacer, thickness of prop, etc. I though the prop just popped off holding the shaft with hemostats.
Here's a good battery holder mod I did a little while back so, if some of you seen this before, sorry for beating a dead horse. I do that at times
What I did was cover the flat area of the entire battery cavity with "fuzz" velcrow (except where the LG slides into the fuse). I made a sleeve (9.5mm) out of shrink tube and stuck some "hooked" velcro onto that. It is super light and holds "AWESOME." I never had a "hanger" after or during flight. It will even slip over the stock batt that come with your Champ with that crappy velcro. BTW, all that velcro that comes with the Champ's batt set-up is crappy...just my HO
Are you still not impressed yet OR are you still fumbling with magnets
Sorry could not resist