Optimum and Duragloss have very little life span on top of a sealant. Likely 1-2 washes max. Using the Wolfgang or DP sealant is actually using a true sealant versus amped up qd'er and will add several weeks of durability.
If you want qd'er look to Poorboys Spray and Gloss. If you want to add to the sealants durability, add Poorboys QW+ , DP, or Wolfgangs Spray Sealant.