Our experiments confirm that (a) query pack execution in itself is much more efficient than executing many highly similar queries separately; (b) existing ILP systems (we use TILDE and WARMR as examples) can use this mechanism to their advantage, achieving significant speedups; and c) although a new Prolog engine is needed to achieve this, the current state of development of this engine is such that with respect to execution speed it can compete with state-of-the-art engines. Further, the experiments are consistent with our complexity analysis of the execution time of packs.