Nice work!
Gossen will no doubt be offering a "joeqsmith" update/fix for $250.00, which may include the dust plug.
Let's not encourage the gent to expect a cut for the JQS Mod, and leave his current day job,
going hungry in the street waiting for a royalty cheque in the mail
"Will stress test and mod multimeter for food"
Even at $250, I would not take them up on the offer. It would have to be for free and as soon as it arrived, you know what I would do with it? You should! They would have to be VERY confident in their changes to want to send one to me and all I have to say is they better do their homework before they would even consider it.
Again, I run the meters out of my own interest and just share my findings. If I were doing it to make money, my current business model is flawed! And again, I want to thank everyone who has offered to help.