Improper shuffling - how to exploit?

[GuitarMarc]

The famous card shuffling study said you need 7 perfect rifle shuffles to properly randomize a deck. Most brick and mortars apparently do not do this.

Example - I was at the Oaks Club this weekend and in the back room they do not use automatic shufflers. The dealer takes the muck and unused cards, spreads them out and mixes them a bit before putting the deck back together. Then 3 rifle shuffles followed by a quick hand mix then 1 more rifle shuffle.

Should this produce any kind of recognizable pattern from the previous hand over the next few hands? Like the flop may be similar or the hole card combinations could be similar? If so, what to do about it?