I've read about using a staggered wall to greatly improve a wall's ability to block sound transmission, but the standard method of building a staggered wall uses 2x6 base plates and staggered 2x4 studs. I'm wondering if building a wall with 2x4 base plates and staggered 2x3 studs would work well. I'm sure it wouldn't be quite as effective at blocking sound as the 2x6 method, but the two sides of the wall would still be separate, which is the key element of the design.