Checked with my Stihl dealer today and he has some coming in next week.
After talking to him about it he made it clear that they are not supposed to be used on "new" beds hence the name "re-definer".
Of course anyone that has one is going to try it on virgin soil and thats what I will do too if I get one. The temptation is too great.
Please let us know if anyone puts it to work in a new bed.