even in practice... but most of players fail in building their toons and cruisers.
It's my original question? Why bother tank when you can remove the need to tank all together by just blowing something up first and faster.
Escorts really that much damage, and not uncommonly.
have you ever tried to tank a tactical cube using an escort? What if you use CSV against several spheres?
I stopped using CSV because often cruisers do not tank or heal, when I play ISE if the tactical cube is attacking me I can stand just 2-3 seconds, I must start flying away, then turning back fire again and go away to regenerate my shield and hull... so I spend a lot of time healing or flying away, not firing.
The best stf I played I played with real tank/healer and real debuffer.
One thing that I think could really change cruisers would be for them to have a built in improvement to beam weapons "Staggered Fire"; quite simply they would ensure that when firing multiple beam weapons that only one fires initially, followed by a second, and then third.
The result here is to balance power drain, and ensure that a cruiser deals constant damage, never really giving enemy shields a chance to recharge. They wouldn't do any extra damage; that's what the escorts are for, but they would guarantee that enemy shields are stripped and kept that way, giving torpedo boats and other burst-damage ships a chance to strike.
Currently no-one bothers trying to stagger their fire because it's a huge pain to do, but by letting cruisers do it automatically they shouldn't actually suffer as much as they currently do thanks to the power drain of a full broadside, and gives them a better capacity to do constant damage that only spikes if they have an asymmetric weapon layout (e.g - torpedo launchers, dual beam banks etc.).
I just used the tier 5 Ambassador class with Borg Mk XI set in a Elite STF and that extra turn rate made it much funner to fly then a Galaxy. Also a lt. commander science officer slot helped as well. Their needs to be more Starfleet cruisers similar to the Ambassador. Still wish their was more funner and better Engineering abilities.