what do you mean by loose fit?? Does it not make a click sound when you push the limb into the riser???
Listen carefully.
I have a
hoyt horizon too and when I put my
Hoyt limbs in I barely hear anything but the same can't be said when I put Win&Win or samick limbs in. They make a loud click sound.
So as long as you can hear a feint click sound you are safe or if you pull it straight out it should not come out.