If it is the newer Timney that blocks the trigger and not the sear, I've not used one. I just think it would be very unlikely to get 2 bad ones in a row given they inspect each and every one before it leaves the factory.
Not sure if this helps or not. You probably already have seen it:
http://www.eabco.com/Remington-700-Version%203.1.pdf
http://www.timneytriggers.com/index.php?option=com_wrapper&view=wrapper&Itemid=15
