I got the Harfang mono point crampons. (The Harfang version of the BD Snaggletooth.)
They seem to perform pretty well, but they also seem to loosen while climbing.
I adjusted them tight, then re-ajusted them tight again after being on my boots overnight.
Did some ice climbing on them. Then re-adjusted and tightened them again. Then soaked the strap in water, re-adjusted and tightened them again and left them on my boots overnight.
Figured they were done stretching out.
Ice climbed with them this weekend. By the end of the day, when I took the crampons off my boots, they had stretched out enough that the heel bale needed hardly any pressure to remove them. Re-adjusted them tighter again.
Wondering how much you need to stretch these things out before they stop stretching.
I have had a similar experience and climbed on them for about 15 days (close to 60 pitches) and finally got tired of having to readjust them throughout the day. I have gone back to climbing with Darts.