From what I know you can do one riffle shuffle instead of a cut.
As to your point about the middle being more secure that is not true. If you cut in around the same place then it is very easy to set up the deck using a cramp to force you to cut to the exact spot. well it works with a very high degree of success.
If your interested in ways to protect yourself from cheating I recommend:
Neocheating- The Rising Menace to Poker, Blackjack
, Bridge and Gin by Frank R. Wallace.