A stemless humeral component for replacing the humeral head of a patient’s humerus includes a support flange having a number of cantilevered legs extending distally away from a bottom surface thereof. The topology is based on an active RC biquadratic topology to achieve the additional benefit of independently controlled stages. In another embodiment, a system for sampling high vapor pressure substances includes a shuttle having a first piston and second piston for shuttling a sample through a sintered core at high vapor pressure and a condensing heat exchanger between the first piston and the second piston, the condensing heat exchanger including the sintered core.