All good points,made my lenth of pull at 13 1/2 as well,and for a straight barrel it handles real nice.Close your eyes,pick it up shoulder it,open them and your right on target,alls good.I get the swamped barrel being superior to straight ones in this discussion.Cast off,pitch,drop will have a lot to say about comfort when shooting as well.I once asked a question on here about the hawken plans put out there and bought a couple,tracks and another and was surprised at the differences in the pitch and size of the finished rifle.While far from an expert and it's just my opinion,the track plans rifle looks to have way to long a length of pull and wee bit to much negative a pitch.Not poo pooing their plan,good reference material,just thinking if followed to the tee you might feel this when shooting.Food for thought is all.