I have a pickgaurd with a hum, single, single, pickups, all the pots, volume, tone, tone, are 250k , I have a coil splitter toggle for the humbucker also, do I want the 250k pots or 500k pots
I'd probably start with 500k. If you find it's too bright you can do the trick that Suhr and Anderson and others do and parallel a ~470k resistor off the single coils so that they 'see' a ~250k pot and leave the humbucker alone so it still sees 500k. And if you've got the 2nd tone dedicated to the bridge, make it a 500k and make the neck/middle tone pot 250k.
I'd probably start with 500k. If you find it's too bright you can do the trick that Suhr and Anderson and others do and parallel a ~470k resistor off the single coils so that they 'see' a ~250k pot and leave the humbucker alone so it still sees 500k. And if you've got the 2nd tone dedicated to the bridge, make it a 500k and make the neck/middle tone pot 250k.
Ratter and grooveHT pretty much gave you the 2 options if you want to go for a hybrid system. I did the Anderson system with a supper switch that Ratter described and I liked how it worked out.
On my other strat I just left the pots all 250k, but it has a SD hot rails in the bridge and sounds good as is.
Found a sample diagram using the superswitch...the resistors do the job on the vol pot, then there's a 250k tone pot for neck/middle and a 500k tone pot for the bridge only.