Had a great experience ordering the Redback One 10-8 sights, extremely fast transaction, shipped immediately and after receiving sights have installed them today and put a modest 150 rounds downrange to test them. So far have my initial impressions are that they are extremely well thought out and based upon earlier threads, Mr. Falla has proven the functionality of their design time and again. Having now experienced them I completely agree with the value and effectiveness. One of the best upgrades to a stock gun of any type that I have made. Thanks again for taking the time to produce these sights and look forward to taking a class in the future.