before working on the toms high-end / attack, have a look at the low-end!
chances are high that the toms have some resonance-problems in the low-end/low-midrange (shell-, room- and tuning-dependend).
if you have a (fast) tom-roll, frequencys summs up and masking each other = missing definition. if you now boosting the toms lowend, things get worser.
try to reduce these resonances on the toms as early as possible (tuning, room ect, but also first plugin).
search these frequencys with a narrow parametric eq-boost. if a frequency sticks out, cut it.
it`s a bit try-and-error, because toms needs natural resonance. but there is often too much going-on at these frequencys, so you have find a good balance.
after that see how the (otherwise still raw-toms) works together with the other tracks.
start EQing them. Transient-shaping, saturation and reverb are your friends
(i`m not using compression often on the toms, only parallel-comp. but no rules...!)
but if the drummer hitted the toms like a little girl, you`re fucked...
edit: check out emrins amazing mixing series, lots of tipps!
http://www.ultimatemetal.com/forum/...ng-series-2-soviet-russia-drums-slam-you.html
and check the phase in relation to the overheads....