I have found a nice combo for daily use to be my Kaji JM with a 901 LR, and my SDMKII with a Bloog carto for when I need to be mobile. My protege also does real good with the carto's. Maybe even better than the SD. But the button is exposed, so it's not that great for hard work. It's more of a out on the town vape imo.
I love the taste that 901s have. I think the longer I vape the pickier I get.