I brew a WC IPA at a smaller commercial level, and use 86% Weyermann Extra Pale Premium Pils and 14% Weyermann Vienna. 6% ABV, 60 IBU, 4 SRM, Chinook and Simcoe at all stages, mash water is adjusted to around 200 ppm CaSO4, 80 ppm CaCl2, 120+ ppm Ca, mash pH 5.4. I dislike crystal malts in anything where hops are showcased. Vienna malt is in there to slightly adjust the colour, but I will definitely go lighter with the next recipe. There is really no breadiness or maltiness to speak of in this beer.
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I think 100% Pilsner malt would be fine, probably better than adding Vienna, Munich, Crystal malts, etc.