Hard to say with certainty. It feels like they got a bit softer and I had the same feeling, that a fair amount of regs would not like the fact that they can't track and would leave to go to a site that allows it. Likewise, rec players and regfish, who understand and know about HUDs and tracking, would "feel safer" and might find their way to MPN. The challenge on MPN is that every 1000 hands or 30 days, whichever comes first, you can change your screen name that people can see. So just cuz you stop seeing a reg on the tables, it doesn't mean they left, they could have just changed nicks.
Yeah I never understood why blaze doesn't run on MPN. It is a huge part of the pool on PS, Party, and 888 and maybe even iPoker, but on MPN nobody seems to want to play it. Its always a lot of fun when they run the blaze cannon promo, cuz everyone migrates over to it. Only at 10nl though.
I think I would try GUTs out. I heard they release their deposit bonuses in really small increments, which is really advantageous to players at our stakes. I am on a site right now that releases the bonus in 5 parts - 15%, 15%, 15%, 25%, 35%. At my stakes I ill never clear the entire bonus, but doing it in 15% increments to start means I probably will get stuck between the 1st and 2nd or 2nd and 3rd increment which means in reality I won't be getting that 20% rb for a portion of the play, which kind of sucks. I think I heard GUTs releases them in €5 increments, so you will actually be clearing bonus the vast majority of your bonus period and won't "lose" any.