Hello Paul - I believe you installed the special Gore packing material in your Commander when you changed out the shafts and props. What size did you use? I saw a thread devoted to a follow-up on the props but I've not noticed one on the packing. Did you in fact use this product and if so how is it working out? I'm going to change out the packing on my Connie prior to launch this spring and I might like to try that. thanks, roberts