RK05J vs RK05F

[Ashley Carder]

Is there any difference in the cartridges for
an RK05F drive vs. an RK05J (or plain RK05)?
I just acquired an RK05F and am getting ready
to hook it up to my system along with my RK05J
drives so I can test it out.  I know the pack
holds twice as much data as the RK05/RK05J, but
is there any physical difference in the packs?

I suppose I'll have to reconfigure my existing
RK05J drives so that the RK05F is either drives
0/1 or 2/3 (or 4/5).

Thanks,
Ashley