I think I've gotten really lucky over the years. I've only produced maybe 20 or so Spiders or Spider combos and haven't had any serious wobblers or spinners. Most show no sign of wobbling, a few showed a little. I still have several that I've raised up and none have developed any wobbling over the years. All the Spiders/Spider combos in my collection came from the same male I picked up in 2006. Producing a really bad spinner would probably horrify me and have me seriously contemplating working with them beyond that. I've seen a few spinners at shows and it's pretty sad.