yes plan is to steep for at least 14 daysKeep us all updated and enjoy, the best thing about DIY mixing is you can always tweak your liquid to how you want, so if 20% doesn't work then hopefully you will get an idea where it needs to be, more often than not, some mixes taste different over time too, so sometimes you can leave it a week or 2 and come back to a very different flavour.
Yes it’s all about experimenting till you hit that sweet spot I guess..You should mix a couple of batches at different strengths and see which you prefer. Personally I always start low. It’s easier to increase the concentrate than dilute the liquid. But to be honest I usually start low and stay low.
Going to be using chefs flavours ry whore concentrate.