I recently purchased my first Glock. It's a new G35, Gen.4. I have several friends with Glocks and they advised me change out the sights right away. I decided to go with the AmeriGlo I-dot night sights. I am normally fairly proficient with a pistol, but for some reason with my Glock I was shooting way low. When I looked at the back of the package that the sights came in, I noticed that my model wasn't listed (I think the G34 or 36? was). Does anyone know if this is the source of my trouble?