Petzl - Removable Anchor Pulse - Piton tested

I BOUGHT 3. 1x12mm and 2x10mm. They are very fiddly in anything less than solid rock and positively unusable on bad rock. I have had several pull out completely on me during testing. I suppose their main use case is rope access where conditions of the medium are more consistent, so it is probably to be expected, but I have not been able to use them in a climbing scenario 6 weeks after buying. Bear in mind I am hand drilling holes, and not using a drill. Personal preference but I would rather use a stake or a piton well before I would hang my life off one of these.