I use and recommend the sort that @neil_w pictured in post 21 above, in sizes from tiny for little 13mm-motored models (have never used a swivel in a MicroMaxx model) all the way up to some from the ocean fishing section of a sporting goods store rated at over 200 lbs. in the biggest ones I fly which are MPR/low HPR level 1 models.
Finding them is sometimes easy, sometimes not so. I think right now for LPRs I'm going through a package I got from Amazon.
Finding them is sometimes easy, sometimes not so. I think right now for LPRs I'm going through a package I got from Amazon.