I'm gonna miss the 3/16 shaft of the medusa 36 50 for 1/10th. I agree some quality 4 poles in this size would be awesome I own 4 medusas in that size. I wouldn't mind trying a comparble neu but I don't think they come in the small pinion shaft size I only see 5mm
You can order the smaller neus with 1/8 shafts. At least I vaguely remember being able to do that...