Ok ... I got curious as to why I'm getting off and on cravings for nic. I've been using (along with web bought) juices I have been mixing up myself in 3 ml test batches. I've been using the E-juice Me Up to DIY. Today, I decided to check out the "20" drops per ml that's on there automatically. Going by drops, using the bottles that I drop from ... I got PG at 23 drop per ml, VG at 14 per, and the flavoring at 32 per. I'm surprised I haven't poisoned myself ... other than it went the other way and cut the nic way down, also the flavoring. (thought it was my taste buds still outta whack) So, I can use syringes to measure ... but... how do I use the calculator now. I'm wondering if I have to plug in each count separately , take a reading for each PG?VG?flavoring .I could print out one for the PG count to start with, change the "count per ml" amount for the VG , and then do it again for the flavoring. I could then cross out the wrong count on the original for each. ....How do you guys do it when the counts per ml are all different ??? They are so far apart in count that I can't use an "average", even for the millimeters. I'm hitt'in the store bought only for a while to get my nic, or I'll be digging out the left over stinkies. I knew something was off, as I have not cut back, and have not had a problem until vaping my own mixes part time (which wasn't bad, just a little short on flavoring and NIC). Thanks for any info.