I7

Kobra X's major speed advantages come from multi-color prints specifically, its time to switch filament is way less and said switch produces less waste So yeah... If you have a single colour print you obviously won't see those time savings. It sounds to me like you only read a few youtube titles and

I just got a SparkX i7 and that's supposed to poop less and it still poops a ton on multi color. If you have the cash a U1 is a good idea but I'm personally waiting for multi toolhead printers to be a few consumer generations in, not first gen