probably a spammer, but no links I can find.

I find with pla, the gentle appliction of a rubber mallet often overcomes inflexibility.

Unless you actually want to take it apart again - then, go with something more bendy like petg :-)

But it bend more often than it breaks.

ASA I haven't tried properly. I did test some and it smelt as bad as abs, so didn't bother going any further.

But pla will generally give, with enough applied force :-)