I've been looking through this and other forums and could not find the clear answers to some qustions. Maybe together we can make the summary to avoid any confusion about the subject.
Tremolos:
1) Hipshot 42100
dimensions : http://www.hipshotproducts.com/files/all/6stg_trem_dims.pdf (no studs/bushings dimensions unfortunately)
routing: ???
2) Gotoh Wilkinson -
dimensions: http://www.warmoth.com/hardware/bridges/pdf/Gotoh_Diagram.pdf
routing: http://www.warmoth.com/guitar/options/options_guitar_bridge_routing.cfm
3) American Standard
dimensions: ??????
routing: http://www.warmoth.com/guitar/options/options_guitar_bridge_routing.cfm
4) Gotoh 510T
dimensions: http://www.hosco.co.jp/HOSCO_ENGLISH/Pages/gotoh_catalog2008/tremolo_510.html
routing:????
5) Schaller 2000
dimensions: http://schaller-guitarparts.de/upload/CY25a14e89X11a9b4c84c6X2466/1213789928544/TZ_TremoloSystem_NonfinetuningTremolo2000.pdf
routing: ?????
The questions are:
1) The routing compability
2) The studs compabilty
3) Bushing size
5) String spacing
6) Overall dimensions
7) Block material options
8) Block dimensions
I've got an impression that all non-US tremolos (i.e. Gotoh, Wilkinson, Schaller) have larger bushings due to metric system. I guess (but I don't know for sure) the studs will not fit the american bushings as well. So those non-US tremolos are NOT direct replacements for Am.Std tremolo. Still it would be good to know if they can be direct replacements between themselves.
It would be good to know if Hipshot studs would fit Am.Std bushings. Are Hipshot bushings has the same dimensions?
Tremolos:
1) Hipshot 42100
dimensions : http://www.hipshotproducts.com/files/all/6stg_trem_dims.pdf (no studs/bushings dimensions unfortunately)
routing: ???
2) Gotoh Wilkinson -
dimensions: http://www.warmoth.com/hardware/bridges/pdf/Gotoh_Diagram.pdf
routing: http://www.warmoth.com/guitar/options/options_guitar_bridge_routing.cfm
3) American Standard
dimensions: ??????
routing: http://www.warmoth.com/guitar/options/options_guitar_bridge_routing.cfm
4) Gotoh 510T
dimensions: http://www.hosco.co.jp/HOSCO_ENGLISH/Pages/gotoh_catalog2008/tremolo_510.html
routing:????
5) Schaller 2000
dimensions: http://schaller-guitarparts.de/upload/CY25a14e89X11a9b4c84c6X2466/1213789928544/TZ_TremoloSystem_NonfinetuningTremolo2000.pdf
routing: ?????
The questions are:
1) The routing compability
2) The studs compabilty
3) Bushing size
5) String spacing
6) Overall dimensions
7) Block material options
8) Block dimensions
I've got an impression that all non-US tremolos (i.e. Gotoh, Wilkinson, Schaller) have larger bushings due to metric system. I guess (but I don't know for sure) the studs will not fit the american bushings as well. So those non-US tremolos are NOT direct replacements for Am.Std tremolo. Still it would be good to know if they can be direct replacements between themselves.
It would be good to know if Hipshot studs would fit Am.Std bushings. Are Hipshot bushings has the same dimensions?