I took the old Highway/OG Road - Dinalupihan exit - SCTEX - Subic last Monday to get to Anvaya. It's wide from San Fernando until Lubao then after Lubao there are still road widening going on with a short malubak portion near the Dinalupihan intersection. If you just wanna relax and enjoy the scenery then SCTEX is still the most convenient but in my case, i prefer the shorter route of taking it via the old road then enter SCTEX at Dinalupihan, especially during "off" hours.