What I said about the classification of your two pistols isn't entirely correct. I went astray when I used the phrase "limited to" when describing the ESP classification.
Pistols like you own typically would be in the SSP category; however, you can "elect" to shoot those same pistols in ESP and CDP if you desire. You might want to if you are desirous of multiple classifications. I think you would be at a slight dissadvantage against single action styles, but not if you are comfortable with your pistol (seems to me last year's IDPA overall champion shot a Sig).
Certain modifications to DA, DAO, and Safe Action pistols (e.g. add-on mag well openings, checkering and stippling) eliminate the pistol from SSP and then registration in ESP or CDP becomes necessary. I hope all this isn't too confusing; I fear I didn't do a very good job of explaining. BTW, I neglected to say, one single action that is the quintessential ESP is another by John Browning, the Hi-Power. T