Over the years, my MTL vape has been with the Nautilus family of tanks.
I have two of the very first Nautilus mini that were sold here in the UK. At year 7 now, I had to replace the 510 pin and the top gasket twice.
I use the original 1.8 Ohm coil (not the Clapton nor the - chocked-- salt type) at 8.5 W power with PG dominant juice.
True classical old-school MTL as originally intended to replace smoking.
The coil life range from one week with dry flavourings, or two days with my preferred Hangsen - uber-edulcorated - juices.
Glad you find your solution. In seven years, I have replaced top and bottom gaskets, pin and insulator twice (eBay finds are espensive but are available immediately, or you can order from China for pennies).
Again, great tank, the truly TRUE MTL vape. The only drawback of the original Nautilus (dad and mini) is they suffer of flavour ghosting, because of the gaskets above. If you want to step up in quality, you need a genuine Kabuki, costing you thrice the money.