@Rás Cnoic, I installed the Wolf Tooth
side by side adapter the night before the ride. Wolf Tooth is awesome... they have so many good ideas. I already had the B-Rad 2 base to allow my water bottle to move down so I could fit a frame bag on my Hakka. So this side by side adapter was added to that, but you do not need the B-rad but I wanted to move the bottles a little higher.
The big question ... Don't you hit the bottles when pedaling? No. They are not in the way. I do brush the bottles with my knees, on rare occasion when dismounting or very technical riding. but it has not been a problem.