We had 12 beta tanks made from M3 floating around for some time now. 4 were Cartomator 22mm, 2 were Elsie Designs and 4 were Pro-V2's with the skirt cap. 2 of the Pro-V2 skirt caps broke after being dropped. Not unexpected, since the skirt thickness is only 18mil or 18/1000" on the Pro-V2 and requires the strength of good Stainless or Titanium to pack enough strength into 4 hair strands of thickness. So we weren't surprised M3 had met it's limit there. Consequently, I don't think the Pro-VM is going to happen with the skirt cap. I can't have $80 tanks dropping and breaking. The M3 Cartomator models have held up perfectly. I even dropped one off my lap as I exited my truck. It shattered the quartz tube and bent my carto threads, but the M3 caps were only slightly scuffed up. So we will probably be making the 22mm M3 Cartomator as the Cartomator VM and it will be by 2 week preorder, since I am not going to carry thousands of dollars of M3 on the shelves. The VM will be offered in standard VX style flat caps or it will offer the optional bottom taper cap that transitions the 22mm tank to a 19mm cone top such as the Provari or the SID. The Cartomator VM is expensive due to the cost of M3. $69.95 and the 2 week wait gets you a very individualized Tank. This is my beta with the tapered bottom cap, fused Quartz and M3 in Volcanic Titanium.