Hi all,
Been reading up on loads of fixes for this, yet I still see people saying they have a problem.
Well I think I may well have solved it, for those who have a V1 Protank and a V2 Vamo at least, and quite probably for a fair few others I'd guess.
I went nuts and broke out an 'o' ring from a box of them I bought on Amazon.
With the tank already fitted to the Vamo, the o ring is simply slid down the tank until it hits the step where the two diameters differ. I use my finger nail just to snug it right down to bear onto the top surface of the Vamo.
As far as I can work out the air is likely now only drawn though the gaps in the knurling pattern on the tank base, and I have found that limits it to being about as tight as my evod, and very probably a little more tight again. Flavour feels enhanced and, gurgling gone, and just one pop per draw, no great amount of crackling now either. however my hearing is no longer all it could be and yours might well be better! LOL
Here's a pic (hopefully - first go at this)
?
The box of 419 rings by Brookstone presently costs £9.99 on Amazon, so let's just call this my two pence worth in trying to solve the draw for those who'd prefer something a little tighter!
Hope it helps somebody, enjoy!