I recently got back from a trip to Rjukan and two guys on the trip had the new BD ultralight screws. using them during the week they were pretty prone to sticking as you put them in, presumably because of the different thermal conductivity properties of the steel tip and the aluminium shaft.
the biggest issue is that both guys had the tips start to separate by the end of the week. All of these were on their first outing and none were rocked or fallen on. Bought from different stores and with different batches. This is a bit of a concern, wondering if anyone else has seen this?