I like to shoot the bow,, and put the limb on top that is easiest to shoot, with good arrow flight,, that being said,, I agree, the strongest limb on bottom usually,, but if it shoots better ,, the other way, I will go with that,, and shape the handle to go with,, I will usually put the reflex limb on top.. I have noticed ,, sometimes they shift a bit,, making it the weaker,,