I’ve done a lot of pollen chucking with DJ’s Blueberry & Vanilluna in the early 00s and still have some F2s and various F3s from Vanilluna. Good effects are buried in those lines but unsurprisingly there are a lot of other issues. Mutants and variegated phenos are cool for sure but I’ve seen enough of that and it’s hard to retain my interest. I said unsurprisingly because DJ would say that the effects (subjective) are either his only or at least his primary selection criteria. I remember people would often say that due to being so inbred, Blueberry genetics really shine in crosses.
I have GG4 x OMG but I’ve never tried it, so trying an OMG cross definitely sounds like a good idea to me. I could also make a few F2s and dust the lowers on anything else that gets tested at the same time. I’m liking the idea of Madre Azul.
Forgot to add that I also have Beautiful Day ( Topanga X SM ) , but I’m already testing that as well.