If racing then can't go much wrong with the mitchelin enduro mediums.
If just riding lanes have a look into the mitchelin trackers.
Harder compound so don't wear as quickly especially on the tarmac.
Maxxis as a trials rear is great on the stoney stuff but have to run low pressures and can be awkward if doing longer rides.
I have trailmax on the Montesa and am very impressed with them, good as a trials tyre on the rocky stuff and copes with mud far better than a trials tyre.
I do not like the Maxxis trials tyre on the rear of my crm and would not have another. Too hard not as much grip as I would like. Only got it because the Michelin Competition crossply has been discontinued as has the IRC dual compound. The radial X11 is good until it crabs sideways on tarmac, and does not provide good grip if given enough pressure to stop crabbing.
I know it's not a trials tyre but I have had a motoz Xtreme hybrid on mine for a year now with tubliss quite similar tred pattern to trials tyre. With tubliss in the rear and it has worked really well and doesn't look Like it worn much at all. But may not be what you want but I found it to be great for all conditions in Devon.
Trialmaxx are a great tyre. The wear fast on bigger bikes but grip until they are basically bald/the knobs start coming off. Find them great. I mostly buy part worns
