I have 2 glock 19's, and recently put XS Big Dots on 1. My other 19 still has the stock sights, and would like to change them for night sights also. I am happy so far with the big dots, but was trying to decide between them and the I dot pro's. I happen to notice you can buy just the I dot front sight and was wondering if anyone has tried them with the rear stock sight. It would save a few dollars if they would work well together. Anyone think it would be a problem using Big Dots on 1 and I dots on the other? Or would it be better to just have them both the same. Thanks in advance for any advice.