So my stock handlebars have these grooves in them that are meant to keep the handlebars from slipping while i'm going down the road. Atleast thats all I can determine that they are for. Anybody know how to put these grooves into my handlebars?

The grooves are put in by the factory...prior to chroming them.

With the bars being tall you're gonna have leverage on the clamps if you ever get it down or have a problem. Before you decide it's all good, get kinda horsey with it and see if they slip.
Be cool with the clamps. You Can get them where you want them, drill and run roll pins,, won't need to be big. But, then you introduce water if you don't do it right.

I mean do most people just not fool with that then when they replace their bars?

Not every handlebar has the grooves, and not every one needs them.  Handlebars that are really tall, or long, or have big offsets use them to keep the bars from rotating in the clamps.

Try the handlebars in the clamps, tighten them to the torque values listed, and see if the bars can be rotated in the clamps.  Most likely the biggest stress on them will occur if you run into something, drop the bike, or use the handlebars to tie the bike down on a trailer.