Mastery thimbles eliminate need to fill and drill on Squire JMJM?

[Blitzkrieg59]

Quick and easy question: Mastery sells "MT" thimbles on their site. If I want to replace the stock AOM bridge on my JMJM with a Mastery can I just replace the thimbles with these and drop them in, or do I still have to pull the old thimbles, fill those holes, and drill new holes for thimbles to fit a Mastery bridge?

[timtam]

Mastery M1 posts are 'guaranteed' to fit USA guitars' thimbles. USA thimbles have an OD of 0.353" (9.0mm)
https://webcache.googleusercontent.com/ ... irefox-b-d
The Mastery M1-KIT for AOM/TOMs comes with USA spec MT thimbles. Ergo, MT thimbles should have an OD of 9mm (although theoretically they could just match on USA's ID).

AOMs/TOMs come in several varieties (eg Fender MIJ JMJM and Squier JMJM are different). Many (eg those with M8 threaded posts) have body bushings whose OD is greater than 10mm. So all such body holes would be too big to drop in Mastery/USA thimbles. Post to post spacing may also vary slightly. Depth may also vary. In any case you can remove and measure the OD and depth of your posts relatively easily ...
https://www.youtube.com/watch?v=Q1ppKxEIF1M

All of which is why Mastery states that body and pickguard drilling/doweling will (usually) be required to fit their bridge (MT thimbles) in an AOM/TOM guitar ...
https://masterybridge.com/which-to-buy/