Here's one more:

A link to Parker Mass' instructions on how to replace the jack in a PRE-REFINED Parker Fly:

https://bobmartin1111.com/BobPics/Replace_Parker_Fly_Jack.jpg

And here's a link to the part:
https://www.stewmac.com/electronics/components-and-parts/jacks/fishman-switchjack-endpin-jack ...

Here's a link to a PDF of the 2001 Parker price list... http://bobmartin1111.com/BobGuitars/ParkerRetailPriceList.pdf

And here's a link to a PDF of the 2004 Parker price list.... http://bobmartin1111.com/BobGuitars/2004_US_PRICE_LIST.pdf

MIDIFly manual: http://bobmartin1111.com/BobGuitars ...