RY4 and Caramal Dram

[McVapor]

I just got my RY4 20ml bottle from DIYflavorshack today with the 1 dram bottle of caramal.

I plan to fill my 3ml keychain bottle with some caramel to test it out, how many drops per ml is ideal? I know taste varies but I don't know the intensity of the caramal and would like to know others opinions

 

[McVapor]

Oh it also just came to me! I have a few drops left from one of my 3ml bottles of the old RY4 from diy-fs and this looks a bit darker than the new bottle I just got. Is that because caramel isn't premixed in my latest batch? the old RY4 was a sampler anyways