I think your Sterling/Ahtuanum combo will give you a really nice herbal combo. The Sterling all on its own can be kind of one-dimensional (speaking from using homegrowns, not commercial). It's a really clean hop. A buddy of mine down the road grows Saaz, so we might do two batches of pilsner - one with Sterling, one with Saaz. If that happens, I'll report back. It might be a while though.