Yes tried one 8%. and still weak I revised recipe and removed cream and added fruit. Link for this (V2) is above a few messages. I received vape mail Saturday and may have some stronger flavors to try.
Perhaps added to the FW Raspberry (Natural) which is very concentrated you might be able to taste something at 8% DS. I have a lot of shop blending this week. Not sure I'll be able to play. If you have all these flavors and want to give it a go, please do and report your findings. I certainly wouldn't complain if you wanted to help...........