I use anything under 2 ohms at 4Volts & below. Any higher voltage it ruins the taste for me. I use standard attys/cartos above 4 volts. Some VV mods have protection built in that wont let you vape a LR atty at higher voltages.
The M1A1 tank from Notcigs is made from an UNCRACKABLE tube material that only Notcigs has. If you can break it we will replace the tube section no charge !
http://www.notcigs.com/m1a1-buzz-tank/
If you want to share a pic, just right click on the image, click on "copy image address" come back here and lick the "Image" ( looks like a little TV set) icon and input the http address that you copied.
If you are satisfied with 3.7V ( fyi the egO is only 3.4 I believe) & the DC cartos I don't see the need to step up to a VV model. However it is nice to have a VV PV since it gives you the ability to dial in your vape to exactly what you like. The new 18650 eGo is pretty sharp. I have one and have been enjoying it. http://vaporgalaxy.com/
The chemistry of the AW IMR's is such that it doesn't need a protection circuit. The batts with the PCB's are a little longer so you may want to check with Reosmods to see if it will fit.
Where did you get the eGo kit from? If it was from Vapor Talk I guarantee you Chris only sells Joyetech. If you got it from somewhere else and it isnt a Joye, you still can use Joye batteries if you wish.
Which Reo did you get? Some take different size batteries. The site recommends AW IMR batts. You can get them here: http://www.cloudsofvapor.com/store/31-batteries-and-more/6-batteries/118-aw-batteries/1055-aw-imr-18650-37v-2000mah-high-drain-li-ion-battery.html
The Lavatube has been great for some, others dont like it. Just rememner its an inexpensive mod, you get what you pay for. Ive been using mine for over a month and havent had any issues. A new mod coming out is the VVPV by Notcigs:
VG produces more vapor. As far as the e-cig the voltage and resistance of the atty/carto play a factor. Low resistance on a 3.7 batt works great as does a standard resistance atty and 5 volts works great also.
I dont know of any companies that send out just free samples. There juice vendors that have sample packs where you can try 5-6 different juices in smaller quantities. Another way to try different juices is to go to a vape meet somewhere. People usually bring lotsa juice for people to try.