I have a Strunal fully carved bass I bought a couple weeks ago, and was wondering how necessary it is to replace the sound posts during the winter to prevent damage. My bass in kept in my house, which is kept at around 71F, and about 25% humidity. I also have two dampit bass humidifier I always use. So is it really necessary that I get new sound posts. The cost of it isn't really an issue, but there arn't many good luthiers around my area, so I'd have to make a pretty long trip in order to get it done. Thanks.