I agree with everything these guys have said.
I would also like to say that Deck Switches are super easy to pull off if the spectators aren't looking. Ballsy, but easy
Also, you might want to learn a regular 2 handed deck switch. Just have a deck in your back pocket, ditch the hot deck in the other pocket, and take out the cold deck. with the other. You can then switch hands if you want to.
If you want a deck hold out that allows you to switch decks easily (if you end up performing to many audiences consecutively or whatever), check out
@obrienmagic 's Switcheroo deck hold out! You can buy a $5 DIY version
HERE (literally takes a few seconds to make, and wont cost you more than a few bucks), or buy the High quality Leather version
HERE (will last you significantly longer, probably for atleast a good 5 or more years) for $25. I have been experimenting with the DIY version for quite a while, and I really like it (will probably buy the leather version too). He also has a ton of tricks on the marketplace that use it, which you might like. Really easy to use, and frees up pocket space! I have some tips on it, in case you do end up going with it, just PM me if you want to know about them! Or you can PM Michael, he's active on these forums
Hope this helps!