As noted in a post on the FB group, the PV folks now offer slats for the beds. Supposedly these are going to be standard starting with the 2017 models, but you can order yours now if you don't want to do the whole measuring/cutting/cursing thing. The set for my CS was $30 plus shipping. Sounded like there were fewer slots for the non-CS models, so your price may be less. Just be sure to call PV and not LG...
John & Lori in Northern VA
Former owner of 2015 T@B CS Max "Uteki" aka "H@wk T@B"
2012 Toyota Tacoma Double Cab 4x4 Off-Road "Zame"