The Velo is on sale 15% right now. According to Tenicor's official instagram a gen 4 variation of the Velo is set to be released shortly, most likely at Triggercon 2019. I've been using a gen 2 for 8+ months now for both the 43 and 19/26, I'll most likely be upgrading to a gen 4 just because. It seems a WML option may be set to release shortly according to little hints posted on instagram, but no plans for the x300.