Model finder table...
* Can be used for either flat or arched guitar bodies.
* Can be a fixed bridge or a tremolo. You turn it off and on.

Model #   G=Guitar B=Bass
# of strings for the bridge you need?

Is it a flat body install?
Is it a arched body install?
Do you need it mounted to the Tune-o-matic posts ?
This model is a Tremolo
This model is a Fixed Bridge
Is your string height  1/2" or less off body top now?
Is your string height more than 1/2" off body top now?
More info
7200G
6
*OK
OK
*OK
*Yes
*Yes
See 7300
OK
7227G
7
*OK
OK
*OK
*Yes
*Yes
See 7327
OK
7228G
8
*OK
OK
*OK
*Yes
*Yes
See 7328
OK
7300G
6
OK
See 7200
See 7200
*Yes
*Yes
OK
See 7200
7327G
7
OK
See 7227
See 7227
*Yes
*Yes
OK
See 7227
7328G
8
OK
See 7228
See 7228
*Yes
*Yes
OK
See 7228
7330G
6
OK
None
None
No
Yes
OK
None
7410B
4
OK
None
None
Yes
No
None
OK
7415B
5
OK
None
None
Yes
No
None
OK
7416B
6
OK
None
None
Yes
No
None
OK
7440B
4
OK
None
None
No
Yes
None
OK
7450B
5
OK
None
None
No
Yes
None
OK
7460
6
OK
None
None
No
Yes
None
OK