tried these long time ago.
got both from gotvapes.com
G4 1st edition (901 connector, used on Riva 510 with adapter) - got them when they just came out. Very disappointed. First one leaked like crazy, tossed it. Filling is PITA since it is too easy to drip into air tube. There is some vapor, but no flavor and no taste. When I got my first VV mod, I've tried to bump up the voltage. On 4.5 volts coil started glowing red instantly despite being wet. So here is the bottom line - no flavor & taste on regular voltage, overheating on higher voltage. Junk
Smart carts 510 V2 - I've heard that V1 were junk, these are not much better. Idea seems good, but implementation is not. Atom fit is very very tight, it is impossible to pull them out. Wicking is poor. It seems that the hole in the clear tank is too narrow and anything but pure PG will not flow out. Again, useless junk
got both from gotvapes.com
G4 1st edition (901 connector, used on Riva 510 with adapter) - got them when they just came out. Very disappointed. First one leaked like crazy, tossed it. Filling is PITA since it is too easy to drip into air tube. There is some vapor, but no flavor and no taste. When I got my first VV mod, I've tried to bump up the voltage. On 4.5 volts coil started glowing red instantly despite being wet. So here is the bottom line - no flavor & taste on regular voltage, overheating on higher voltage. Junk
Smart carts 510 V2 - I've heard that V1 were junk, these are not much better. Idea seems good, but implementation is not. Atom fit is very very tight, it is impossible to pull them out. Wicking is poor. It seems that the hole in the clear tank is too narrow and anything but pure PG will not flow out. Again, useless junk