I have Addis and KnitPicks and prefer the connection on the Addis. They never have come undone.
As for bamboo vs. birch, I have some of the birch dpns and they are slicker than bamboo in general, if that is a concern.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry