Slow here as well. I took my 5ml batches of 4% DK, 8% DK, LBL #1 and LBL #4 (with 5% blueberry instead of 3), mixed them together and have been vaping that.
I think my next test will be:
7% DK
2% Brown Sugar
2% EM
2% Blueberry Wild
But, I need time to DIY =\ Days go too fast!!