I wouldn't ever think to look there myself, but in PlayerPsi.entity I see this.
baseHyperspaceSpeed 29500.0
hyperspaceSpeedBetweenStarsMultiplier 24.0
hyperspaceSpeedToFriendlyOrbitBodiesMultiplier 1.0
baseHyperspaceAntiMatterCost 100.0
baseHyperspaceChargeUpTime 7.000000
Looks like that's where it's at. Thanks! ^^;;
I guess all I'd have to do is change ToFriendlyOrbitBodiesMultiplier to 24.0
EDIT: Actually I had to change the base rate to 708000 and put both multipliers to 1.0, just in case anyone was interested.