It all depends on other changes that SE are going to introduce, if any that would specifically help DRG such as tier 3 merits. For example, if they gave us a concept that was brought up in a different post and gave us save TP as a job trait, we would gain a lot more from changing to a different sub. We could also get some sort of ability that would allow for 2 mins of haste to compensate for the down time on LR. Very unlikely I know but after thinking over it, /DRK on it's own won't cut it, however if there are any other changes which is what I would expect from plans they have announced, anythings possible.