I am building my first table with leaves, and as I do on all projects I am seeking advice from those who have experience. First, please just let me know what you have learned from projects. Especially need advice on sliders. The table will be made from "barnwood" and will have a closed overall length of 6 feet and with a planned expansion of 48 inches to 10 feet. A big one. Plan on running boards perpendicular to the expansion. Been looking at the Rockler sliders specifically their 29488 and the 29504 as per http://go.rockler.com/tech/29470-504.pdf . Any thoughts on these sliders would be appreciated also. Still a long expansion and just wondering if it is a go or not.