ProV, no doubt!! The Vamo works but it is still just a cheap looking and feeling Chinese mod. I am very underwhelmed with the Vamo, I bought it to see what VW is all about. When I go from carto tank, to Vivi Nova, to DUD I need to change wattage to get the vape I want anyway so whats the point. I thought it was supposed to vape adjustment free, but for me it doesn't. When I hold it I have to remind myself it was cheap or I get a bit bummed that I bought it.
The ProV is going to last at least a year with no more money out of pocket due to the warranty. It feels good in my hand, and it is very consistant, from full charged to dead battery it vapes the same drag after drag.
The Vamo in shorty mode is the same size as a full sized ProVari, with both in 18650 mode the ProVari is about 3/4 inch shorter.