As stated above, keep it light. They fly nice under 14 pounds.

Also just FYI, the F-16 has LE Flaps, not slats.

They might be a bit large at the tip, root looks close. Hard to tell without doing some measurements. They look good. Main thing is keep them tight!

A little full sacale F-16 info. Not exactly sure of the correct degree deflection of the LE flaps in full deflection but when we would rig them on the full scale, we shot for a dimension of 11.5 - 13.5 inches down meassured from the center of the leading edge at the root to the center of the strake where the leading edge of the flap was at 0 degrees. Most all rigged in around 12.5 inches. I believe it was in the 30 degree area. Easily scaled meassurement using the correct scale of the model.

Also trailing edge flaps maximum deflection was 22 degrees. You have way to much flaperon travel in the full down position and will kill you if you get them down that far on final. Base eyeball setting is the trailing edge of the flaperon should be just about 1/8" below the strake at full flap deflection. Also the flaps on the F-16 are driven through the landing gear handle. Gear down, flaps down; gear up, flaps up. There is a flap switch in the cockpit to lower the flaperons but this is for emergency situations only. Also when the flaperons are fully down for landing, they never go down more, only one will come up. Believe me they are effective!

Leading edge flaps do not deflect until the nose gear is fully off the ground. They stay positioned at a 2 degree up from center position when ever the plane is on the ground.

Just giving the info as the BV F-16 uses scale airfoils and in all the ones I flew back in the day, we never used flaperons if we were under 14 pounds. You can lift the nose and manage power all the way to touch down at very slow speeds.

Good luck.