BENQ released "Version 2" of the BENQ XL2420Z and BENQ XL2720Z.
It makes "BENQ Blur Reduction" better than LightBoost, when combined with Blur Busters Strobe Utility

Blur Busters Strobe Utility for BENQ (requires V2 Firmware)
.... http://www.blurbusters.com/strobe-utility
.... Make it brighter or clearer than LightBoost, even adjust input lag tradeoff

BENQ has V2 Firmware available for download:
.... http://gaming.benq.com/downloads

To install this V2 Firmware:
... DIY Instructsions for Firmware V2 Install on BENQ Z-Series

If you haven't purchased a Z-Series monitor yet but were planning to, it's now possible to find BENQ Z-Series monitors that already has V2 firmware preinstalled, if you buy from certain places.