1610 Ballscrews

[AndyUK]

Just incase you're also replacing the Z axis, as it appears from the sizes you've asked for, there probably isn't much to gain from going 1605 to 1610.

[JAZZCNC]

Just incase you're also replacing the Z axis, as it appears from the sizes you've asked for, there probably isn't much to gain from going 1605 to 1610.

It depends on what you want really. The gain will be double the feed the cost will be lower resolution and torque. However, if you have a motor that can handle it then the extra speed can really help with 3D work.! . . . horse for courses really.
I actually fit 10mm on my router machines these days but I always connect screw and motor with a belt and apply a ratio, it allows flexibility.