I just learned something new recently, thanks to founder and CEO of The Angel Company Mischelle Smith. I was visiting the TAC Savvy Projects Blog, when I watched this tutorial Mischelle did. Never have I known to sand my solid stamps before using them. Yes, it has frustrated me that I had to use them a lot before they stamped well, but for some reason this tip slipped right by me!
So...I did an experiment and here are the results...
Stamping BEFORE sanding:
Stamping AFTER sanding: