It is all done on the unit itself. No computer needed. Unless you hunt with 5 different rifles at a time 5 profiles is plenty. One profile covers all the varibles for one cartridge.
Actually I would think one profile would cover all the variables for one load. Am I mistaken there?
WHy would five profiles be plenty? I often thake more than five rifles to my longrange spot to shoot.
If you are going somewhere that you can take 5 rifles, you can take your laptop or whatever else.
The beauty of this system is that it does it all for you in about 1.5 seconds. You don't have to enter anything one a profile is in.
It is not convenient to change profiles every time you shoot as you have to scroll through the alphabet plus special characters to spell out just the name of your profile. The rest of the changes are a snap.
I realized that I put the wrong velocity in and it took me about 10 seconds to fix that problem. I only put one profile in it.
