So I recently got a shot timer as that seems to be one of the primo ways to improve as a shooter.  Been intersting for sure.  
Yesturday I was out with 2 rifles...one with an Eotech and the other with a LPVO.  While I was generally faster with the eotech I was very surprised to be faster with the lpvo transitioning from one target to another.  I was stumped as to why.  The eotech is on a smith and wesson lower and 14.5 BCM upper which I'm loving as my go to gun and the lpvo is on my saint edge...a light and fast gun with a much better trigger.  You think it was a firearm difference?