SHWAT.com made a very nice review of both optics
https://www.youtube.com/watch?v=XrGUyqPpaLk
You can read the article here
Link: http://blog.cheaperthandirt.com/aimpoint-t-1-t-2-comparison-review-video/?utm_source=newsletter&utm_medium=social&utm_content=chronicle0425&utm_campaign=20150425-aimpointt1vst2
From: SCHWAT.com via The Firearm Blog