I have my bass equipped with strings that claim to be suitable for both arco and pizz playing. The pizz sound is very good. However, while the D and G strings bow and pluck well I have a difficult time getting the fundamental out of the E and A strings when bowed. I've resorted to putting on E and A orchestra strings for my lessons and lesson practicing and swapping back to the original strings for jazz rehearsals and gigs. I don't mind changing the strings, but I wonder if the frequent releasing and applying of tension is going to cause the sound post to wander. Thoughts?