I'm having a good time with my visions. Purchased all sizes except the giant. Me too, realize that the smaller the size, the tighter the draw. My thoughts on the difference in taste between the sizes is that they are actually the same. Just that the easier draw on the bigger ones are mixed with more air, hence the slight difference. I don't have preference over the draw strength as i like lots of variations in my vape. Variation is also the reason why i prefer regular size because i can switch flavor more frequently. Vision stretch is a little too slim, visually for me.
Not all visions are created equal tho. While most of them are fantastic, there surely will be one or two funky ones. And i happen to finally receive one of them. It is a regular size vision that got a serious leaking problem at the seal around the connector center post. Didn't realise it until half of the liquid inside was gone magically, had not even started vaping on it. Luckily, there was a tissue paper below it.
Here is something you can try if you encounter the same problem as i do. Use a flat tip screw to turn the center post (the part that connects to the battery), clockwise will recess it, anti-clockwise will raise it. The whole chunk of everything in the vision will spin with it too. Mine just need to be raised, and it is now working perfectly, zero leaks.
WARNING: If you want to screw the center post, please be extremely careful. Never let the internal parts spin more than half a turn. Use the wicks as a gauge and never let them criss cross each other. Don't force it as you will snap something inside. I did it with a little juice left inside so there was minimal friction. Only do it if it is absolutely necessary!
I also get gurgling occasionally too depending on my juice. What i do is play around with the inner plug. Press it tighter against the center tube, turning the inner plug slightly off angle to reduce the size of the two small holes where the liquid flow to the coil, will help me remove the gurgling.
You just need to fiddle a bit with it if you got one that won't behave, and they'll work wonderful.