The kayfun V5 looks good. It is advertised as an "upgrade to the Kayfun V3 Mini".
The biggest complaint with the V3 Mini was of course the small tank.
(I got me a Kayfun Mini V3 PLUS clone, seems to be sort-of an inofficial V3 Mini clone but with a LARGE tank. Am I correct to assume that a Kayfun V5 would hardly be an upgrade to this, respective that a Kayfun Mini V3 Plus and a Kayfun V5 are very, very similar?)
The biggest complaint with the V3 Mini was of course the small tank.
(I got me a Kayfun Mini V3 PLUS clone, seems to be sort-of an inofficial V3 Mini clone but with a LARGE tank. Am I correct to assume that a Kayfun V5 would hardly be an upgrade to this, respective that a Kayfun Mini V3 Plus and a Kayfun V5 are very, very similar?)