To be honest, after lvl 55-60 the classing is moot. Torpedoers cap relatively early. If they capped late, the increased growth would be useful.
I've personally considered trying a set of partially delayed torpers (I haven't run the calculations to see when to class them to still cap 100+) but getting the extra rep/rest would be interesting to see. Would be useful for a high level sub crew though would likely require some hefty $$$$.