You will learn everything you need in class. There is a 50 question written exam, but everything is covered in class. You should pass fine, I have never had a student fail the written test.
To clarify, that is only if you fail to return to DPS a license if you are issued a MODIFIED license. The only way to modify a license is to change your category of handgun. If you qualify with a revolver, your handgun category will be "NSA" for Non-semiautomatic, and you cannot carry a semiauto under your CHL. But if, for example, 2 years in you decide to switch to semi-auto, there is a procedure for shooting the qualification for an instructor with a semi-auto, and you can have DPS issue a modified license to "SA" for semi-auto. Then you can carry either semi or revolver.seamusTX wrote:One of those things is failing to return an active license when you are issued a new one. If you commit a third such infraction, your license will be revoked
If you do that, you MUST return the original NSA license to DPS. That is the only instance where you must send an old license back in. If you change address or name, there is no requirement to send the old license back.