Elec/Elec/Elec Sentinel is fantastic. I play one as my main/badger. The damage is fairly descent. Not blaster level but good enough. It is unbelievably tough. Added bonus, Aim improves your -end powers. It is a very fast sapper. Most mobs just stand around blinking at you with an empty endurance bar. Even Bosses. Enjoy.
Elec/Elec on Sentinels is awesome. I have two attack chains that floor whole enemy group’s endurance. A great hold. A great heal. Regen. Recovery. And decent resists. Baddies just stand there and blink at you while you pick them off.
Don’t do it. I have a 50 Dark/Staff Tanker. IO’d out very well and Alpha slotted. Amazing survivability. It feels like I am hitting baddies with a toothpick though. Anemic damage. Rolled a Shield/Street Justice tank. Amazing defence and offence. Having said that I love the them and now am wondering if I should try the combo on a Scrapper lol.