Everyone's eyes are different, and likely each scope is too......I would send a scope in for repair or replacement if not clear at a given power.
Re: 3.6" ER, many scope are 3.5 and many happy users of various B&L and Bushnell Elite's which were 3.3" - Though I have enjoyed one unicorn in the lineup in a 3-10x40 compact with 3.7" - and that difference was appreciated. If 3.6" is not working, perhaps it needs to be mounted a bit further back on a given rifle for a given shooter. Just a thought.
I am always interested in the long term durability of new brands and hope that Tract works out well.
