I just made some tapered alum. sleeves for my pole jacks, both for my longer Supermid jack pole and the shorter Duomid pole.
Here's the dims./ .500 I.D. at the large end and .420 I.D at the other end, at 1.5 degrees per side or 3 degrees included, and exactly 1.500 long. O.D needs to be a straight .550/.548 dia You can press-fit, or use Red loctite, thread-locker, depending on the fit to the pole.
Both my Gossamer Gear LT4 poles and my older Leki poles will fit these tapered sleeves.
Give me a mailing address and I'll send you one, free of charge. Oh, and your snow baskets do not appear to be in the proper location, which these sleeves can not correct for. Looks like the baskets need to be further up on the tips.
Or send me your pole jack and I'll install the sleeve and send it back to you ready to go.