Can you use thunder max old map on new USB module

[itsafatboy]

Just wondering if I can use old map non USB on the new USB unit it will load in the new runner software but I notice the new software has no iac tables like the old software did

[itsafatboy]

so it did let me load the map in the tmaxII software map is from the original tmax software,  so it loaded all looked good and i saved it ,  i did notice after i saved it i cannot load it in the older software any longer , so maybe it will import forward but not back, which is fine.   

[itsafatboy]

you can use old maps on new units ,  just not backward compatible