Snooping/Hacking Digital Scale display (RIBBON?)

Also, just took another look at the "blob". Tare (zeroes the scale), Mode (switches from grams to oz's or something) and on/off all trace into the blob. There are 16 traces into the blob, and 16 traces out of the blob. Is it possible that not all of those 16 traces are relevant for me to get my data? For instance, I plan on "zero-ing" the scale manually with the arduino. Because you won't actually see the display, I'm just going to subtract an initial measurement from a final measurement to get the same result as if you had "zeroed". If there were actually only 4 inputs or something that I had to worry about that'd be nice, haha. The scale goes up to 500g so maybe there's only 8 or 9 inputs that actually matter to me...