A-body vs fmj spindle for handling?

Well i don't believe that.
That "editor" doesn't know what he talks about in lots of instances.
Weigh them yourself and see, if you have both styles, in your inventory of parts.
If you disagree and try to express that, it is on YOU to provide evidence that you are right. Until then, I'm going to trust people that have a reputation in the hobby outside of selling used parts on web forums.