If your gears are beating themselves to death, you're doing something very, very wrong.
The amount of slop in a planetary gearset is ridiculously small, and even after 9 months of heavy use hasn't changed a bit. I would be really surprised if your slop was significantly lower (considering the number of parts, and how crappymany most Gt2 pulleys are), but even if there is, it's not enough to make one bit of difference in print quality. I've had geared extruders with lots of slop, I've had direct drive extruders with zero, in the end there was no difference in print quality due to slop.
And actually you can go as far as you want with software correction in this case, since it only occurs on direction change, I.E. retraction, which doesn't require absolute positioning.
I'm not saying your extruder is bad, or even some of your reasoning, but you are spreading F.U.D.
The amount of slop in a planetary gearset is ridiculously small, and even after 9 months of heavy use hasn't changed a bit. I would be really surprised if your slop was significantly lower (considering the number of parts, and how crappy
And actually you can go as far as you want with software correction in this case, since it only occurs on direction change, I.E. retraction, which doesn't require absolute positioning.
I'm not saying your extruder is bad, or even some of your reasoning, but you are spreading F.U.D.