Now for the Helen's Hybrids - unfortunately not what I was pulling for, but hopefully the mat is still viable. Not very promising for a cold hardy plant considering the amount of protection it had and how mild the temperatures were this winter. The weird thing is that the p-stems are very firm, basically no give at all when squeezed. We'll just have to see how it goes.
And if you are interested here is a short video of the process.
https://youtu.be/eSS3HD8BYRQ