Sorry, made a mistake with the names. The Mitas rear I have is the C-02 which, I think, has not much chance of clogging up.
Not sure of which Maxxi I'm getting, my mate is choosing that one for me.
The issue I have with the MT43's is that muddy trails quickly become like ice. The tyres clog up and just become muddy circles, which is similar to the TKC80s. Both times I've fallen off due to no traction on the front has been with the TKCs.
I'm getting a bit fed up of changing my tyres for the trials, so I want something I am happy with that I can keep on all of the time.
I'll have a look at the ET-01.
Thanks for the info for Tyre Finder. I don't know what it is about them, but I love looking at tyres.