Hate to post a redundant thread so first I did a search and found about a bazillion other posts. I apologize if this topic has been covered. I've always used Groove Tubes but have noticed a lack in quality lately and it is time for a retube and bias. It's for a 50 Watt KT66 so it would be one matched pair. I have had crappy luck in the past so I figured others would have more insight. I was planning on a pair of Genelex Gold Lion but if JJ's are any good then I'll try them first but would like some objective opinions instead of sales hype, or maybe there is some other brand that people like. ...thoughts, feelings?