I'm using the X52 (with Rudders), too - great fun!
I re-assigned several avionics-, view-, radar- and targeting-functions to the buttons and by saving them under another name am able to select whatever jet's controls I'm flying...
Example:
- make copy of controls/default.ini
- go into the game under options/controls, selcet "copy of default" (or if saved under "F-14-controls" select that one), and customize - all changes will be saved
- you can do this with as many planes as you like (say special AA or ground offence HOTAS-setup)
But I had to apply the hotfix first - maybe your SF2NA-download already included it!?!?
I can supply an example of my controls.ini, if desired, when back at home tonight...