Tech1/A Mass Storage Cartridge Part numbers
 

I'm currently trying to decide if I should buy one of these:

Reprogrammable High Capacity Cartridge P/N 02003137
Vetronix SPS Mass Storage Cartridge P/N 02002451

Anyone have a suggestion on which to get? Is there a list of Mass Storage Cartridges that are a safe bet to be Master Cartridges? I contacted both sellers of the above carts: only one got back so far and said a picture from when it was plugged in shows "GM 88-96," but they no longer have a scan tool to verify...

The above are all I could find online today, so perhaps I should wait for a 3000003 to pop up. Any info/recommendations on cartridges is appreciated.

Re: Tech1/A Mass Storage Cartridge Part numbers
 

If it states 88-96 when plugged in. That is a master cartridge. GC