good idea, CJ!
If 18 does not satisfy you, then do go with 24 by all means.
Tobacco smoke contains all kinds of stuff, in addition to the nicotine. Vapor contains only the nicotine, so to speak.
So, when we switch from smoking to vaping, most of us do consume the nicotine as if it was going out of style... to make up for all the other stuff that we are not getting any longer.
I would recommend getting one bottle of a 0 nic liquid with your next order, though. In a flavor than can mix with your favorite flavors. (vanilla goes with almost everything). Thus, when you find the 24 a little high,
over time, then you can mix some 0 into it, to lower the nic content to your taste.
I myself started with 18, and I stuck with 18. Still vaping 18, two years later. I just consume less liquid now.
@woodenjester:
As to cutting down on the nicotine:
Take it slowly, please. The nicotine is not the enemy. Nicotine is about as "harmful" as caffeine. It is all the other stuff in tobacco smoke that was killing us. Including the smoke itself.
And: if you vape (say) 9 ml of 6 mg nic - or if you vape (say) 3 ml of 18 mg nic = you get the same nicotine in one day. Just gotta vape more and find it less satisfying. If I am hungry (now!) I do not want to eat lettuce leaves.. and eat and eat... I want a steak. Now!