Not sure, but planning to re-bed...
I just purchased a 1981 Catalina 30 and I have the same problem... Not sure what the "best way" would be, but my plan is to loosen the bolts enough to raise the pedestal a bit, scrape out whatever is underneath and lay down a fresh layer of bedding compound.Hopefully someone that has dealt with this before will provide some first hand insight... If it ever stops raining up here and I get a chance to try, I'll re-post.