i use 2 radios, both jr. i have a jr xr3 that i used for years with everything, however its only 3 model memory and i got a wicked deal on a jr xr3I. close to the same radio, but the xr3I has 4 model memory and can swap between 2 sets of 4 (so technically 8 model). it also have a couple more features like the panic steer (press a button and switched your dual rate steering to 100%) and having 2 position 3rd channel was a plus for reverse in my savage. however the 2 position 3rd channel is also the downfall of it for my crawler as i use rear steer and need the 3 position (would need the same if i went to a dig unit).
i will be using the xr3I on my fg as well