I'd like to see pad printing survive that!
Got mine today.  My first ever geekhack keys.  I'll post pics tomorrow.  I stand corrected (where ever it was that I made the comment to Ripster) that SP keys are indeed thinner than filco keys.  The key top is much more textured than I anticipated, yet the sides are glossy smooth.  Cool keys.  Can't way for my round 3 sets to arrive!