My spoke length calculator tells me I need 260.07mm spokes in front and 259.65 on the NDS rear and 258.51 on the DS rear.

How much of a compromise am I taking if I use 259mm spokes for all three?

FYI, I am using a SONdelux hub in the front with a 32h Mavic XM719 rim. In the back I'm using a Shimano FH-M770 hub with a 36h XM 719 rim. I'm using the Mavic spoke calculator.

Paul