Just received my order and on the invoice it says free mx426 however the bottle label says its mx427, haven’t seen any threads about this mix unless its actually mx426 with the wrong label.. it smells like watermelons 
nonetheless will test this mix out, anyone who has tried this mix let me know what they discovered about it!
Its an MX - You are supposed to try it and tell us!
And there are a load of threads on the current round of MXs, here and in the store forum - which are TAA-based, to test new diffusion methods!
I just receive my order today and there is a small bottle of MX427. Will post my report soon after I try it! 