The higher brace on the PSE fits your shooting form. If I were you, I' d sell the Martin and shoot the PSE. IMO, draw length and poundage are only two elements of getting a bow fitted to you. It also has to fit your natural shooting style.

I don' t recommend making artificial bends and kinks in your bow arm elbow. A straight, unlocked, relaxed elbow has a bit of natural bend in it already. Bend it more than it' s natural bend and you' re supporting the draw weight with the triceps muscles instead of shooting with bone on bone pressure. Muscles get tired and shake. Bone doesn' t.

I do agree with Lilhunter. If you' re holding your bow handle like a suitcase, then you need to orient your hand differently. Here' s the best way to explain it I know.

Extend your arm like you' re drawing a bow, elbow relaxed, not locked. Inside bend of the elbow perpendicular to the floor. Hand straight out, palm down. Extend your thumb out to the side. Now, roll your forearm until your thumb is pointing up at 45 degrees (without moving the inside bend of the elbow) and totally relax your fingers and thumb. That is the position you want your hand in when you grip the bow.