See im no expert on voltage etc..i switched to clearomizers from the cone shape tips some time ago. I am wanting to try something new to improve my experience. I have had issues with both kinds of accessories with my ego-t . There must be some better equipment out there. I am just tired of wasting money on experimenting.
I'm certain Taylor has much more experience with all this than I do...but since I'm here...I'll list my vaping journey (so far).
I started with MFS's "eGo-C w/ CE4 eGo Clearomizer Starter Kit"...which I'm pretty sure is similar to your "ego-t starter kit". And I'm still using the eGo-C's and CE4's that the kit included.
I then added 2 innokin iTaste VV's and some Aspire Clearomizers/Glassomizers. (MFS doesn't carry the iTaste VV but they do carry the iTaste MVP. They're both Variable Wattage...which is what I wanted.)
Now the iTaste VV and Aspires have significantly better taste/throat hit/vapor than the eGo-C's and CE4's. But since I fill all four with different juices I'm quite satisfied having all 4 in my "rotation". (But if/when the eGo-C's and the CE4's "die"...I'l replace them with iTaste VV's and Aspires.)