Gary, I missed your post above. Congrats on purchasing the Dude. I don't think you will be disappointed. It is hard to know if it is better than the Jade in an absolute sense. If the Dude does not float your boat, you can always snag a Jade in the future. I will have to check out the Sylvanias. I tried the Raytheons initially and they did not do it for me. It is conceivable I did not have the optimal Raytheon as they come in different flavors. There is an "organ grade" tube that is supposedly optimal. All that being said, it is better to buy from a reputable tube dealer. I tried buying a few Raytheons on Ebay and regretted it. I know the Weitzels would be interested your tube rolling experiences. You should mention this to them.