My wife recently bought me a Chronograph from midwayUSA (Competition Electronics ProChrono) for my birthday back in March 2014. So, i took it to the range, and omg this thing sucks lol. Anywho, Im doing various load work ups using OCW and Ladder tests. I get a lot of "Dupli" or duplicates while running OCW charges, more so if I have only a .2 or .3 of a grain difference. I stow the ammo in the shade and usually shoot one of each load working up, then back down, then back up (If I load 3 of each charge). Any ideas? Should I just buy a magnito speed and try again?