Excellent work @eonwarped! You just may have two consecutive wins; we shall see!

There are benefits to all different variations of sit-ups, and I suggest mixing them up. Doing them strict helps build strength, as does adding in the arms overhead (as long as you do so with strict movement), but using the arms for momentum allows you to do greater volume (more work done in less time equals higher intensity). It’s comparable to training both strict pull-ups AND kipping pull-ups. Do ‘em all!