My input was just that... my own experience based on my own taste.
Many mates here likes the 1.2 regular coil; maybe its not just for me as I dont do MTL regularly.
7/8w is insufficient for any GTX coil. Have that in mind. Especially under 0.8ohm.
Also, I must insist about the 0.6 one; power a bit down and airflow adjusted to your liking and I think you could be surprised with the result.
It's even more anecdotal by me as I've only used the one 1.2 mesh and 0.8 but what you first said made sense even if your coming from a DTL route and I'm not.
Regarding 7/8W being under powered, I am not denying this especially as the 0.8 ohm says suitable for 12-20w. Despite this it seemed to work really well for me at 7w.
Going to go back and try a fresh 1.2 when I'm waiting on the 0.8 ohm. I don't know what it is with my back to front experience I'm using the 1.2 right now at 10 w and it's no flavor whatsoever. If I top up the tank with fresh juice, for a few minutes I get some nice flavours going but soon enough back to nothingness verging on a hint of burntness if anything.
Will persevere anyway. Still got to try out the zikde tank too. Was very impressed with the 0.8 ohm for flavor and longetivity despite definitely not being set at the right power - although as long as it's not dangerous I don't see much issue trying again. Definitely could have been imagining how good it was idk vape stuff can be very fickle as everyone knows.