Ulticontroller and other Speed settings

[dubtec 0]

As GR5 suggested in another post, I want to set my speed to 100mm/s and then use the % of the ulticontroller to adjust the speed, hence 50% = 50mm/s etc.

Q. Does this effect the retract speed? and travel speed?

---------------------------------------------------------

I understand that really I should try to keep infill and perimeters the same speed, to reduce lag,

Q. but what would be a comfortable and safe difference outside 80% of infill speed?

--------------------------------------------------------------

Im using Simplfy3d and all settings are mm/min, so I assume its just a simple matter of divide by 60 to get mm/sec?

i.e 6000mm/min = 100mm/sec?

thanks