Never buy from blackstarled.com - They are thieves.
Two things:
1. They're overpriced so you'll want to get them from eBay, BUT
2. If you buy from eBay if/when you have an issue you'll have no warranty
Seriously. Some of the blackstar panels have serious problems that make them just not worth the risk of buying them full price. But on the flipside if you don't have a warranty on a blackstar, it's a disaster waiting to happen.
For the people that got panels w/o the diode issue it's all roses though.
Problem is you don't know what you're going to get.