An adjustable stop attached to the smaller of two nested telescoping tubes. The closing body, which is constructed cylindrically and pot-like, is guided with its cylindrical casing surface at the cage-like insert and in contact with the seat with a flat outer surface. If a chord is acceptable, a node representing the chord is created, described by the start and end points of the chord. A filings and financial process receives, from the first data source, filing and financial data concerning the specific issuer, which is also stored on the storage device.