if you raise them to 5700 it will likely shift at 6000. you could go 6100-6200 but somethings gonna break like that. why push it to the moon?
theres one line for shift rpm, another for mph. if your less then 75% throttle it will shift at the mph, if your 75% to wot it will shift per rpms. so you need to figure out what mph you shift at for the 6000 rpm's. then change that line if you want.