The invention relates to methods for producing recombinant human zona pellucida protein and glycosylated peptide having biological activity of binding to human spermatozoa. The wall has at least one blow hole therethrough. Each statistics collector receives accounting instructions from the associated forwarding engine for packets processed by the forwarding engine, including packets that will be discarded without being forwarded. The reference signal source is connected to an additional input of the phase-locked loop. The first position and the second position are located on a sound cone of confusion for the nominal position and the nominal direction. A preferred bonus payout indicator is clearly visible by the player and is actuatable when the reels of the slot machine stop on certain predetermined indicia.