Thanks for all the replies - both positive and negative on the HD Lights!
A couple more questions:
For those running HD Lights on a GA, which are you using: Phosphor Bronze or 80/20? (Also, which guitar? - 314, 414, 814, etc...) Have you tried the other version of strings (e.g. 80/20 if you use Phosphor Bronze, or vice versa)?
TIA!