I'm interested in giving CBD additive to my vape juice a try but I'm kinda lost. The site I'm looking to buy from has 60, 120, 300 and 500 mg to choose from. I don't know if I should start low or high, and as much as it costs I don't wanna get something that isn't gonna be effective but at the same time I don't know what starting with something too strong will do either. Also, will the additive effect the flavor of my eliquid at all? If so, how drastically? And is it safe to use with sub-ohm/direct lung style vaping or is it only recommended for MTL vaping? Thanks in advance for any and all feedback.