I'm sure it's probably been mentioned already, but there's 6 pages of this here and I'm at work so I try to post quickly. But as was mentioned on page 1, the ego is just a battery, it doesn't affect the flavor or TH at all really. The atomizer/carto/clearo is what does that part. It sounds to me like maybe the atomizer/cartridge isn't the way to go for you. Luckily, now that you have a 510 threaded ego, there's a whole world of different atomizing devices available for your battery. Maybe the next step would be to try a different type of device, like a cartomizer or clearomizer. I would recommend against getting low resistance (LR, also seen seen as 2.0 ohms and lower). You'll want to get something along the lines of a 2.5 ohm (SR) device.