Processing old Tri-x 4x5

Hi, I have some 4x5 Tri-x film that was exposed about 10 years ago. I would like to process it, but need a little advise as to how to proceed. I use HC-110 dilution B for all of my current Tri-x film. I have been told that adding some 1% benzotriazole to the developer may cut some of the fog, but I also know that it would produce a thin negative unless the development time was increased. Any information as to how to proceed would be appreciated.

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