I have a Russian deluxe and civil war w the mid and dreamer mods. The mid mod is great. Makes it flat and sits perfectly in the mix. Not extreme, just right. The dreamer gives you a whole different and deeper fuzz. Love that too.
I have the blend on my civil war and it took me a long time to figure that out. Forever, I could not figure out why the clean was so low in the mix with the blend. I even sent it back to have them look at it. What I finally realized is that there is no boost on the clean in the blend, but the dirty signal is significantly boosted and it's hard to get a clean balance. If I put a boost/OD in front of the muff, though, I was able to get more of a balance and that works. Not sure why they couldn't tell me this. Anyway, that's the deal w the blend.
it's a fine blend, but needs some work. And IMO, you don't really need it if you have the flat mids. With that, the signal sits fine in the mix.