Which is a huge deal for a lot of people. Even Busardo (Kayfun's #1 fan) complains about how crappy it is with temp control because there's simply too many moving parts in between the pin and the coil (as the guy above said, it's over-engineered). That's what stopped me from buying one. I need and REQUIRE solid and stable conductivity for TC since I only vape with TC (like more and more people these days).
Svoe Moesto needs to think about simplicity as well as being a tank for all styles of vapers (i.e. not just being a tootle puffer tank). I see no physical reason that one tank cannot appeal to both crowds (MTL and DTL) if it is engineered correctly. Because, let's face it, there's a million sub-ohm tanks for a reason: they sell. Most people prefer direct-lung vaping. I don't, but I realize I am in the minority and have to live with the fact that most new vape products will be designed for the #cloudsBros. Svoe Moesto has an opportunity to appeal to both crowds. If anyone can engineer a design to do this, they can.
The KF4 was NOT designed or intended for TC use. That's not SvoëMesto's game.
Anyone complaining that it doesn't work well with something it wasn't designed for, is barking up the wrong tree.
Is it perfect? Not by a long shot. But SM did what they could to bring a KAYFUN to the market, that answered as many of the "fan requests" as they could.
People LOVED (and still love) the KFL series.
But people also wanted deck access, juice control on/off, P3 threading, stock glass tank options, stock top fill ability...etc.
And that's what SvoëMesto delivered.
They weren't trying to reinvent the wheel with the KF4.
I find its best to view the KF4 as "a KFL reimagined". Does that make it better than the KFL? Maybe not to some people. But it IS better in many ways.
It wasn't, however, designed to stand on the shoulders of the KFL...which is a tough act to follow. The KF4 was created to stand alongside the KFL, as another offering from a great designer.