I may be a bit biased, but I've been using this safety for the past 2 years and has greatly improved my speed in getting the gun into action. In addition it makes my Saiga handle more like an AR-15 which I also shoot in competition. The only down side I have heard from anyone is the right side safety lever may contact your trigger finger, but you can easily shorten that lever to what ever length you need.
You may want to post this in the Saiga 12 section to get more feedback from forum members.
Doug
Thanks, I will try that also.