I've been using a Competition Electronics Pro Chrono Digital. It does 9 strings of 99 shots + stats, uses one piece rods for the sky screens, and has the option of a PC connection. No complaints to date. I also got the USB link for connection to a laptop/PC, which makes printing & record keeping pretty easy.
The connecting cable is 20', so you can control the chrono via laptop at the range + use the laptop screen for last shot velocity display. Alternatively you can just bring the chrono back & dump to a PC afterwards for printing/archiving.
I purchased them at Brownell's & with the LE discount the package w/shipping was less than $150.
CE will repair/replace one of their current production chrono, regardless of condition for no more than 1/2 of the current MSRP.
Nick