A disk clamp has a data position in a recording track that is resistant to positional deviations even after temperature cycling is conducted. The peptide finds particular use as an appetite suppressant and in the treatment of obesity. The first series of courses defined by a first, covered elastomeric, yarn and a second, low friction, yarn. The control algorithm includes a first closed loop algorithm for determining a desired intake manifold pressure or gas density, and a second closed loop algorithm for adjusting throttle position, based at least in part on a difference between the desired intake manifold pressure or density and a determined value indicative thereof. The excessive flow valve is engaged in a through-bore of the valve body.