I use the fixed 10 verstion of this scope and I have been realy happy with it for the last 2 years, it has helped me win a few comps and I did well with it last year in the nationals.
From a light gathering point of view it is every bit as good as its rivals and to be honest, much better then most. I reviewed the 10x42 tac 30 for Airgunner last year and if you send me your email, i will more then happily send you a rough copy of the article.
I personaly love the Tac 30 range and I will continue to shoot with one this year.
Somehow I made TEAM ENGLAND 2012 and 2013
Illiterate writer for AirGunner
The real Kung Foo Panda.