TheIconoclast wrote: ↑
Mon Nov 05, 2018 8:40 am
Indeed it is a big step backward to switch from the spring slog type to the friction.
There is no absolute better or worse though there may be some consensus on which is deemed most desirable for the majority. It really depends on preference and use case.
I prefer spring-loaded push-push over friction push-pull. I have struggled removing push-pull SD Cards, have had to dismantle cases to extract then, and sometimes with great difficulty because I did not want to break the card in the process. But I have also inadvertently caused push-push SD Cards to pop out when not intended.
Luckily I haven't suffered any damage, but both choices can have failures, and both can lead to damage. I personally have had fewer issues with push-push than push-pull but others report differently.
I don't know if failure modes or which is most likely to have problems has ever actually been quantified but pushing a push-pull to remove an SD Card should be less likely to cause damage than pulling a push-push. That is the most common damage I have seen done to push-push sockets.
I would therefore suggest push-push is the best choice only when it can be guaranteed that a pull attempt cannot be made, a push-pull best when it cannot. In that respect the friction fit push-pull choice would seem right for a Pi.