The way I've always looked at it is if the labeling instructions say not to do something I won't do it. I don't understand all the reasons why, but just don't want the potential liability.
My understanding is that if anything ever goes wrong with an Electrical system someone has worked on and they see one thing done against code or UL Listing that person will be on the short list when Ins. Companies go looking to recover for damages. Remember, even if you're innocent it costs money to defend yourself. Why open yourself up to that?
Bill
