Great - I found you all!
A supplier in the UK stopped making their chocolate mint ice cream cone one, and it's been an every day one for me since mid 2014! They sent me the recipe, and it has 5 flavours in it (Capella and Flavour Apprentice) ...seemed a bit daunting, but I was soon mixing up 105mls of flavouring each time! I use those tall glass lab cylinders from 25 to 100ml.(Sadly, Capella has just stopped making the Dutch Mint Chocolate! I do have a stock of it thankfully).
That same UK firm has gradually diversified into many ranges of flavours, including a lot of one shot types from a number of companies including their own - makes it easier for starting with.
Don't worry about making your own - not difficult, and plenty of people able to help.
You're so right about concentrates, but Clark said that even those would need their own certification, licenses etc.
I'd absolutely love the recipes, because as you say, I can't use more than 30% PG without becoming breathless. There were many of the NT range that I either never got the chance to try, or were too high in PG for me.
I just got a last 60ml of Virus because I can still taste it quite well mixed with something like a VG Crème Brule, and I also bought plenty of the Got Cookie because I can make chocolate ones or even mix it with cream, custard or strawberry etc.
As you say, having to use high VG means I have no idea what a liquid tastes like in a higher PG mix, so if I like it in high VG, then that's good enough for me
I do hope Clark releases some recipes - some I'd love to have again, some I'd really love to try in high VG, and some I missed altogether.
As you may know, we're soon to be restricted to 10ml bottles of ready to use liquids containing nicotine. I'll still buy some - some makers seem to be discounting when buying 5,10 or more at a time.
But, being able to make my own when I find something good is great, and such a saving - I'm only just recovering properly from an illness in late 2015, so not much work done, and not much income as a result ...hopefully, things will improve as I try to regain my concentration and momentum, but I'm not holding my breath on that score - just taking it steadily!