Yep, Its me necroposting again.
I've emailed back and forth with... Bill... I believe.
Over at hipshot. and I felt I should share the Convo. as he was very helpful.
I basically asked what Route I needed, and how to choose between the two thicknesses.
My name is Bill and I'm a Tech at Hipshot. Thank you for your question about our Guitar bridges.
If this is for our Guitar tremolos, yes the American Standard route is the correct pattern. As for the height, this measurement is for our Fixed bridges and would not be needed for our tremolos. If this is for our Fixed bridge, usually we recommend the .125" for Fender style bodies. The pattern for this bridge would be the narrow Strat flat mount.
Hope this helps, let us know if there are any other questions.
it is indeed for a fixed bridge, on a warmoth iceman (so its a flat top)
what do i need to measure to know the right height? or is .125 generally going to fit on a flat bodied guitar?
I'm going to go out on a limb and say for this guitar you may want to use a .175" bridge. The picture they show, has the spots for a Tune-o-matic bridge and tailpiece. This make me think that there may be a slight angle in the neck pocket, which will raise the height of the strings at the bridge. The .175" will give you a little more at the bridge.
If you have any problems let me know and we'll get it straightened out.
So in all, a Quick reply, very friendly and professional.
but... is he right about the neck pocket?