I probably didnt help the bat, by lending it to my son, while he was winter training at Somerset,,not a big fan of Bola balls at 80mph! But needs must
I do have another of these bats with 19 grains, but the sweet spot is tiny, so I've not used it
My Affinity spectre has 8 very thick straight grains, and that bat is just one big sweet spot !
And my sons Affinity carbine has around 15 grains,,and again that bat is something else,,with a very long middle!
I guess,,,to a certain extent, grains really don't affect bat performance
It's purely visual