I love a warmer
vape. I use LR cartos, 2.0 ohm, on a variable voltage
device at around 4.6 volts. Nice warm vape! If the carto is good and broken in, I crank it up to 5.0volts sometimes. That makes for a toasty vape!
In terms of your clearos, look for something with lower resistance (2.0 or 2.4 ohm) and you can probably crank up the volts on the MVP to the middle 4.4-4.8 range and not get a burnt taste but still get a warm vape. Variable voltage is the best way to get a warm vape.
Some peeps insist that you have to use a 3.0 ohm or above clearo or carto on a variable voltage
device. You do not need to do that. You can use low res, and I believe that is the only way to get a warmer vape.
Good luck! You will love the MVP. I really like mine.