I was going to post this in the 402/201 thread under the reviews section, but since the thread headed in this direction I'll just post here...
I've noticed that when using the 401 battery, the atomizer seems to heat up quicker when compared to the 402. I thought it was my imagination, but a friend who I recently ordered a 401 battery for (he was using 402s exclusively) brought this up. I'm not really noticing a large amount of increased battery life, but it does hold out longer than the 402...then again I really haven't done any testing to verify this either.
I also emailed Absolutley about a higher strength liquid, but they are focusing on keeping ALL of their liquid stocked rather than offering a larger variety of strengths/flavors. I'm a little disappointed (i usually vape 36 cut 50/50 w/vg), but can understand this direction (for the full email excerpt check
http://www.e-cigarette-forum.com/fo...reviews/4523-m201-402-my-dream-e-cigs-39.html ). Its frustrating as all heck when a supplier is out of liquid, especially when combining orders to lower the cost of shipping. If their liquid is as good as i think it'll be, Absolutley may become my one stop shop.