Are there any OD restrictions for how you rig Vang Cunningham and outhaul?
Best use the latest handbook. Just in case there have been changes. https://www.laserinternational.org/about-ilca/handbook/The short but sweet answer. It's buried in the details.
if you're concerned about getting the best/fastest equipment just get the 15:1 cunningham/vang system. I find the harken ones work the best. And they look like the bees knees if kept clean. Hope this helps.