pebpeb, my time at Decware showed that they are very open and straight forward about their gear. If you have a question about whether a mod would be beneficial I would call (Don't e-mail..very slow) Steve and ask him about what you are considering. If he believes it is a good move he will tell you.
I love your tube choices. The cheap stock 6N1P is a great tube!
I just bought 8 of them from Russia for 20.00 shipped and all new for my Stratus when it is delivered uses a 6N10p so I loaded up on NOS. I now have 11.