Donic Blue Contact, which is a classic thick glue, shreds blades when you try to detach the rubbers. Therefore you would have to seal the blades more heavily than usual if you want to use this glue. This can affect the way the blade plays. I can't recommend it. If you are a person who wants to get glue off the sponge after that, forget it with Blue Contact. You will never get it off. It does adhere well and is easy to use, but the disadvantages of it are considerable.
Finezip tended to clump. I have never used Vario clean but it sounds from things I read as if it behaves like Blue Contact.
I don't recall that MX-P was more difficult to attach than Tenergy 05. I find that Butterfly Free Chack II is perfectly reasonable (and designed for thick pored sponge), even though it is not a thick glue. Two coats on the rubber, one or two on the blade, and attach. It is very easy to use, and the bottle design helps you avoid making a mess. The rubber stays flat and even, and the glue doesn't clump. It doesn't dry too fast or too slow. The rubber attachment stays solid until the rubber is worn out, but then when you remove the rubber it will not damage your blade. The most you might need to do is use a little hairspray on the blade before gluing, and then only if the outer ply of your blade is very soft. With patience you can also remove the glue from the sponge, although I never actually do that myself.