Happening again? I've not heard of it happening before. What are you using, what are you using it against? Is it an e-kit, a-kit or brick wall?
Unsual mate, 25+ years and I've never heard of the beater bending out of shape due to general playing. I've known a few 'stompers' too.....the heads always gave way long before the beater shaft had a chance to bend. Interested in more details.