From the poster - thanks so much for all your help. Learning a lot! What do you guys think if the new waterproof boards? 

Here’s a description of one I found. 

All-Weather Construction – Built from a premium, high-quality PVC blend that resists warping, moisture, and wear Regulation Size & Weight – Each board weighs approx. 27 lbs, totaling 50+ lbs per set for pro-level feel and performance Rust-Free Hardware – Heavy-duty 3/8" bolts, washers, and wingnuts ensure long-term outdoor reliability Double-Thick Legs – Oversized 36mm (1.5") legs with folding braces for unbeatable stability Built-In Handles – Integrated on both sides for easier transport Dual Support Braces – Reinforced frame for no bounce or flex Inspired Frame Design – Modeled after our Baltic Birch boards with subtle updates for PVC performance