I have been dabbling in the DIY ejuice world for awhile and I can't seem to get the nice strong store bought tastes that the pros have. I'm pretty happy with my current coffee flavored vape but I also make juice for my son and he's always complaining it's not strong enough. He is in love with FW Fruit Rings as it's similar to the Nillionaire he gave up. Even at 20% he says it isn't strong enough. If I mix it any higher it gets perfume tasting. Any recommendations? Does steeling it longer make the flavor stronger? Thanks in advance!