I personally don't mind a foamy first pour, but that is me. To me, it means that the entire device is being more energy efficient, as you aren't using the shank as a heatsink transferring energy.
I use a coffin box attached to the wall of my walk-in, and all the shanks and faucets are at room temperature, so the first pour from any of the faucets is foamy, but it is worth it to me since if I were cooling the coffin box to keep the shanks and faucets cool, it would be costing me that much more in my electricity bill. We all have different priorities though.
How big of a deal is a foamy pour to you?
Walk-In Serving(14): Flanders red, Hard Cider, Belgian Tripel, Liquid Stupid, Wee Heavy, American Brown, Rye IPA, American Amber, Imperial Stout, Dry Stout, Cream Ale, Belgian Wit, Traditional Mead, Oatmeal Stout
Walk-In Cold Storage(~50): lots of beers, meads, and ciders
Oak Barrel: Flanders Solera