As I've said a few times before in this thread alone Dick,
IF you happen to be lucky enough....
But I've also seen soooo many reports in the threads & posts here on this Forum alone about those who haven't been;
AND I've personally seen the results of sooo many who weren't... nojoke
You
might be lucky enough trying it that way Cobranut, but as I've previously mentioned, while much of the 'non-static' & not 'on-vehicle' balancing equipment that's commercially available is
technically capable of doing it,
most of the 'non-static' tire balancing equipment you can get these days
still requires specialist hubs and locking collars, et al. to allow you to mount and balance a Spyder rear wheel; and
unless you're
even more lucky, you might also find that it's harder & more expensive to get those specialist pieces of kit that you'll need than it really should be!!
That's a big part of the reason there's so few places you can go to in order to get a Spyder rear wheel balanced any other way but statically!! If the bits you'll need were reasonably enough priced & even just vaguely easy to get, I'm pretty sure that more would get them and do it!! :banghead:
However, there are a couple of members here who either bit the bullet & got the gear they needed for their own balancing equipment; or they sourced & purchased it to suit their local tire outlet's balancing gear; and IIRC, there's at least one other member here who's been able to machine up the necessary parts for their &/or a local tire outlet's equipment!

hyea:
So, it's definitely
not impossible - it's just not easy &/or cheap, or I'm sure more would do it!!