Yep, daisy chained just showed the same info on both displays. I doubt I'll have to poke around on the hardware for an output unless they guy who made these things didn't consider using more than one. I'm going to have to contact him and see. He does sell a board with two 4 digit leds. All you'd have to do is add another as the Max led driver will handle a 8 by 8 matrix. For our purposes 8 digits by 8 segments(one decimal point each digit). So it is very possible he didn't consider using two of his 4 digit modules together and didn't have an output to go to the second boards input. Considering that his 4 digit modules were in effect wasting half of the MAX led driver, he might also have had trouble finding an output to go to another 4 digit module since the MAX driver probably only output the inverted O15 bit for chaining to another MAX driver. Yup, just pulled up the MAX7219 data sheet and dOUT is pin 24 and is not used on the board. Would be unable to use it with two 4 digit boards as the data on dOUT is only valid after 16.5 clock cycles. So you can only daisy chain the 8 digit modules. Oh well.
Thanks for the thoughts.