There was a guy who posted a lot on ECF years ago who believed in Go Big. He was a notable and respected recipe developer. I think he sold juice. He posted recipes as drops per bottle. I believe he got out of the business in the end and stopped posting.No, I figured go big or go home. I did 1.5% each.
My recollection is he wasn't a fan of steeping. He liked to make juice strong enough to vape immediately. He once said if you like one of my recipes then go ahead and reduce the concentrations and steep the juice, maybe that will work out, maybe not.
I tend to do that. Start with high percentage of flavorings, then reduce them later if I need to. A lot of folks start low and up the concentration as needed.