Don't get me wrong, I like it but asides from wanting to expand my experience with different vaping gear, I'm on the hunt for MORE flavor. I don't know if I'll ever find it, but the hunt is on! I may play around with different PG/VG mixes once I find a few recipes I really like but I'm not in any rush.
On my SVD, flavor, the best tank I've used and got the best flavor from is my Russian 91%. How the vape chamber and chimney are setup the vapor is compacted from the chamber up the chimney then compacted again at the mouthpiece, which enhances the flavor. If you can build a good coil in you Igo you can get a good coil going really quickly in the Kayfuns and Russian style tanks, an you get what you pay for with them.
@Newyorkifornian - Though disassembly and re-assembly are a little more involved, rebuild and re-wick of a coil on them is not that difficult. Once you get a good coil built, the biggest issue is juice flow control and air flow on the full blown Kayfun 3.1 and full blown Russian, getting the adjustments just right is trial and error. The Russian 91% just has air flow control over the normal Kayfun Lite, the Kayfun Lite Plus addresses that downfall if you are looking. And remember, that both tank systems have dedicated fill ports at their bottom deck plates, they are there for a reason, filling from top then fully sealing one you have to get the threads started for the top cap then tilt upside down and finish screwing together or you'll flood the coil chamber, personally I don't mind removing my Russian 91%, remove a screw, fill, replace screw, and put back on my SVD.
@OP - Not much anyone can tell you about a new system other than I can say, look at what you are wanting to do with you atty attachment, then look at tank capacity, convenience, and portability for that particular role. Just running to a store and back I'll grab my iTaste VV V3 with a Mini Vivi Nova, iClear16, or Protank Mini, out for a few hours with friends I take my SVD with my Russian, and my MVP with either my Hypertank or Cartotank on it, at work I run and gun with my MVP with a cartotank or 2 T3S tanks and my iTaste VV in my pack as a backup, out at a vape shop I got most my whole rig (rebuild kit, SVD, MVP, iTaste VV, couple mech units, and a slew of attachments I will be rebuilding during the setting), at home I'm running on my mechs with various dripping attys, as you see given different situations I adjust my PV configuration to compensate to last me the day or 2 days really.