Have you ever run an A-body with more than +3.5° of caster? Because if you haven't I don't see how you can have a relevant opinion on running more than that.
I also see you changed your reply, was the first one not good enough?
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Also- a salesman? I didn't promote a single product or a single seller. Heck I listed half a dozen sellers that compete with each other.
No, of course not. But if someone shoots from the hip about what they thought they remembered from 10 years ago and in the process make wildly untrue statements about the safety of certain parts they should be corrected. Because nothing even close to what was said is actually true. And "doing your homework" should mean considering the facts, not wading through a mountain of made up BS.