When given a proforma like: `[+56.026215]-K[+70.041865]SAPSIGGVK[-28.0313]K[+56.026215]PHR/3` the masses returned do not contain the sign if they are positive, the returned proforma is: `[56.026215]-K[70.041865]SAPSIGGVK[-28.0313]K[56.026215]PHR/3` Regards Yasset