None of the above haha
That’s not strictly true to be fair, I have the sigma Kera cut, which is a very well made piece of kit, and works very well indeed.
But I’ve also just bought a second system from Raimondi, which is equally as good.
Rubi Slim is a waste of good money, don’t bother.
Montolit Flashline mk 2, is an improvement on the first I’m led to believe by those who use it, I sold mine because I feel it’s more for the occasional user. (Mine was mk1 tho)
So for occasional use, not full time, I can recommend the Flashline.
If you’re working with it day in, day out, like myself, then Sigma or Raimondi is he way to go.
And yes, it’s all a large investment, especially when you start buying frames as well.