I did a under load test with a Provari and a Semovar
I put both mods at 4.2 volts first I used a atty that measured 2.7ohms
The Provari under load 4.2 volts
The Semovar under load 4.19
Next I used a dual coil atty measuring 1.7 ohms
Both mods set at 4.2 V
Provari Measured 4.19
Semovar 4.17
So it seems in my mind The Provari is still the champ its close just a couple hundredths of a volt but the Provari is regulated just a little better.
Also the Semovar will work with a inline meter so its not the cheap low frequency PWM chip the Chinese use.
I used a 510 to 510 extension with alligator clip leads hooked to a multi meter for the test.
There's enough stray resistance variation in the setup for the numbers to be equivalent.
Ok, I'll shut up now