I can't comment on your question about contacting printing on Azo. I use pyrocat-hd with TMY in 120 and consequently enlarge my negs. I have no problems with blocked highlights. This is using a condenser-enlarger which doesn't make things any easier (I am about to install a second enlarger with a diffuse light source side by side to it and do my own comparisons after reading all the condenser/diffuse-lighting ramblings on photo-net).
From my limited experience with TMY I conclude that TMY developed in D76, XTol or pyrocat-hd is easier to work with than one might think after reading all the negative comments. If your first negs look thin don't increase the development until you printed them.