The Blade Tech DOH holster would work nicely for your stated uses. It's the common choice for USPSA Production class competitors.
The drop and offset allows a clean grab from a relaxed position. The muzzle clears the holster quickly.
My son has an SP01 Shadow with the DOH, and I have 'borrowed' and used it.
![Wink ;)](https://czfirearms.us/Smileys/default/wink.gif)
Works smoothly. The 'drop' adaptor can be removed if needed.
I don't see a left hand version on the CZ Custom site, but would PM "Stuart" here, and ask if it's available. Most are about $67.