Braid, around 30lbs, is going to be your best bet. It won't get all kinked and break on your first backlash. Your Calais doesn't have magnetic brakes, as suggested by another member. They are centrifugal. Here is how to set it.
I would start out with 4 of the brake blocks pushed out (on). Then wiggle the spool back and forth while you tighten up the spool tensioner, which is the knob on the handle side. Eliminate all play, side to side from the spool. You can probably tighten it up a little more, but the goal is to have that spool spinning as free as possible eventually.
If your backlashes happen early or mid cast, ease up and smooth out your casting motion, as well as using more of the centrifugal brake blocks in the 'on' position. If they happen when the lure touches down (also called an overrun) you can tighten up the spool tension a bit, but you probably need a little more thumb education.
Before you start 'aiming for the sky' I suggest smooth, sidearm casts to start, increasing in speed with your confidence. Makes small adjustments to your brakes. Ultimately, that reel will cast 3/8 and up with 2 brakes on and minimal spool tension (never so lose the spool wiggles) pretty safely once you get the hang of it.