Reconciling microscopic and macroscopic tests of the Compton-Schwarzschild correspondence

We review the experimental constraints on the parameter α associated with the Generalized Uncertainty Principle (GUP) and the parameter β associated with the Generalized Event Horizon (GEH). The Compton-Schwarzschild correspondence implies a relationship between α and β, with both parameters being of order 1. This presents a problem for our previous `$M+1/M$' model since the extra gravitational force at sub-Planckian masses contravenes observations. Various resolutions of this problem are discussed.