Actually the Tatroe SS tops are more than twice as expensive. And they are worth every penny.
1. A few days after getting the Protank, I dropped my Provari and the Pyrex sheared right off where it connects to the lower chromed section. I had been thinking of getting a Tatroe, so I pulled the trigger, since I had a perfectly good base for one.
2. The Tatroe holds more juice than the Pyrex top. It also has ZERO leakage. The Pyrex top would start gurgling and sputtering liquid into my mouth when it got to about 1/3rd full. The Tatroe starts gurgling when there are a few drops left, but continues to vape until the tank is empty.
3. Use you own drip tip.
4. SS, so basically shatter-proof. The only remaining issue is the known problem with the base itself, but this is a problem regardless of top.
5. Only drawback is you cannot see how much liquid you have left - which is why I want to have at least 2-3 in my arsenal.
Note, this is my base with my Tatroe. I have a second Tatroe coming, and I will be attaching it to my one existing base to see if it has the same performance. I also want to get a few more bases and swap them around. If the performance is consistent, this will be my perfect solution - no expensive Genesis attys needed for me - along with my eBaron Pro for dripping.