Thanks for the replies and discussion. This is interesting.
First, it is nice to find out that it is not me being stupid forgetting about Sentinels from before the shutdown...
About playing sentinels and blasters -
With blasters, a great part of the game (grouped) is holding back and adjusting aggro generation to the melee players ability to hold aggro. I need a good tank/s in the group to be able to go all out right from the start. The impression that I get from the discussion that while sentinel’s damage potential is lower, it is more often, up to always, able to go all out on damage and reach this full potential - because it can deal with the blow back from tanks losing aggro hold.
Interesting.
OK, I guess I’ll just have to try it out and see how it plays out.
Now, I need a new RP concept for another alt...