Serious problems with tanks and RDF/Raid
When I que with my 4 tanks daily RDF I get instant invite and do them very fast. Then I que with my Mage and it takes me longer to do RDF with mage then 4 chars before it. It is all due to high population with low percentage of tanks and heals (but tanks esspecially). So this needs to be balanced out. More people need to be encouraged to make a tank or OS tank. The same thing is with raids. In pug if tank leaves the raid for some reason you can call it Raid Over for sure.
My suggestion is to make RDF Heroics to give 4 EOF to Tank, 3 EOF to heal and for DPS the same (2) for first daily RDF. And not to be permanent, just make it like this for 3 months or so. That way more people will role tanks and heals and generally there will be more tanks on server. After 3 months pass we can disable this feature and see the result.
I think noone would dislike it, not even the DPS people, because from now on they will get fast RDF invites and get their daily EOFS in no time.