Rear Brake wont return...

[gentle]

Soooo....I took my brake pedal off and adjusted it so it fit my foot position better(it was angled up in a way that made it super uncomfortable to keep my foot on it while riding...ended up always having my foot just hanging off the peg which isnt very safe Id imagine)...that little job seemed to go well but then I realized that my brake wasn't returning enough to make my brake light turn off. Im not sure if I caused this by adjusting the brake pedal angle, but I kind of dont think so...maybe just noticed it because of  it. Anyways the metal arrow on my rear wheel says its still within the usable range although quite a bit closer to the bottom end which I dont even know what that arrow indicates...brake wear? is the bottom or the top more wear? 
Hopefully that spells out my situation...Im trying to decide if its a job I can handle or even want to or if I should just take it in.

Any advice greatly appreciated!!!

[Thud300]

I did the same thing, the brake pedal was so high I couldn't flex my boot enough to comfortably use the pedal.

Easy to fix, take the metal cover off the brake lamp switch, and readjust the switch to work in the new pedal position, it has a threaded adjuster. You will need to disconnect it at the bullet connectors under the air box on the right hand side and  loosen the rubber harness straps on the frame under the engine, then remove the harness from them so you can rotate the switch without twisting up the wires. 

Just plug the switch back in, turn the key on and make the adjustment, you will need to back the switch out of its holder several turns to get the correct adjustment back. Then put the harness back into its straps and reconnect it. Be sure to keep the harness and the strap ends away from the exhaust pipe.  If you do this on the center stand it's also a great opportunity to adjust your brake cable for minimum travel of the pedal.  Be sure the wheel can spin free when the brake is off.

My 454 has just over 6K miles on it and the arrow is near the bottom of the range indicator.