I've a dual pistols/kinetics corruptor and its really fun for me.
Kinetics pretty much takes care of any concern you might have about lower damage than other sets. With the right enhancements and siphon speed, you can get fulcrum shift's recharge down pretty easily. Specially when taking into account recharge buffs from incarnate powers and teammates. I can stack three fulcrum shifts this way. That's a lot of damage on teams with larger spawns! Things will just melt! Plus, fulcrum shift puts you in the perfect position for Hail of Bullets afterwards and Bullet Rain to finish things off. If you also focus on getting about 40ish percent smash and lethal defense? You suddenly become very survivable against most mobs. You don't have to worry about soft capping to 45% too much. Team buffs will help.
I keep saying team buffs because, to me, Pistols/Kinetics doesn't actually solo that well. That's okay for me. Kinetics shines on teams more than solo anyway. Teams will love you! I just focus on kinetics until my AoEs are up. Then things melt!
My suggestion would be focus your build on getting lots of Recharge bonuses and smash/lethal defense bonuses. Look at incarnate abilities that give you recharge bonuses. Take clarion because squishes like mez protection and then take ageless when you're facing groups without many mezzes. Don't worry about endurance. You have transference for that. Put a kismet accuracy bonus in something like weave or scorpion shield. You're kinetics, you don't want to miss. Take tactics or focused accuracy for perception bonus when you need it. You don't want to be blinded. Keep your team speed boosted and use siphon speed whenever its ready to keep up with them. Then spam fulcrum shift and siphon power whenever they're ready.
Oh! And make a costume with custom power selection of "No Redraw" like was suggested in an earlier post. You'll be thankful.
