Oh my goodness. Thank you so much Juli for asking for this tool. And thank you Dave for creating it for us.
It is truly amazing. I can't wait to share this with the sempervivum people, many of which grow iris, hosta, and many other plants that this would apply to.
I tried it out on this sempervivum.
Hen and Chicks (Sempervivum 'Jungle Shadows')
Hyrbridizing of sempervivum is making a come back thanks to the efforts of Kevin Vaughn. He is encouraging a new generation of hybridizers. What a great tool this will be to all of them.