I had a Reo Mini a couple years ago sold it due to battery life. I have finally settled on my VV setup. But now am wanting to move to a Mechinal mod as a a second setup. I know I want a Reo and a RM2. Question I have is do I get the 2.1 or the 2.0 Mini or just go for the Grand. My daily vape right now is a Provari with a ZAP in the 18490 mod as the 18650 just feels to big for my hands. Will the Grand feel as big and heavy as the Provari? Also how will a 18490 battery handle sub ohm atty setups? I use AW IMR batteries if this helps you answer my questions. I am ready to pull the trigger just debating which Reo to buy.