Yep. The Vamos solution to firing at 3 volts was to fire at 6 volts with micro pauses in between to get an average of 3 volts over the course of a second.
The average voltage was 3 volts, but the coil still got blasted with 6 volts 16 times a second.
^^This^^
Although I do feel the topper is generally more important regarding this topic, don't underestimate the role of a good mod (especially if you're looking for consistency).
My biggest disappointment when I started e-cigs was the inconsistency from hit to hit (and especially through the life of the charge). That's something I never had to deal with when I was on analogs.
That's why I chose Provari...I know that if I set it on 12 watts I get 12 watts (and not some average of 12 watts)...even up to the last hit. If I start getting some inconsistency, I know it's time to fiddle with my topper.
Of course, not everyone is sensitive enough to notice a difference, but for me, the peace of mind I have from knowing my device is the most accurate on the planet (PBusardo, ref.) is priceless.
Back to the OP's question: for the past year, my main vape has been Halo's Tribeca. It's their version of RY4. I've been meaning to try other versions...can anyone recommend a good one?