Dear Chris, Thank you very much for your review. Your feedback is very useful to us, as it helps us to improve existing products and develop new ones. Seeding is a technique growing in popularity as crystallisation targets become ever more challanging, and we think the microseed beads are a very straightforward way to try out this powerful technique. I'm very happy to let you know that your Amazon reward voucher is on its way to you! Yours Claire Naylor Molecular Dimensions