“My existing listing is producing steady sales now, but I want to try & make it better. Could completely rewriting it hurt my current success? ”
Yes, it could. If you have a good conversion rate (without using promotional discounts or freebies), it is possible that having the entire listing recreated and uploading it all at once might cause an adverse effect. This is because of the way listings are indexed by Amazon.
Our recommendation is that you slowly test and tweak your listings over time. You can do that on your own or with our Listing Lab testing group that provides professionally created tests you run on your listings.
Another option is our Amazon Product Description Boot Camp series that will help you with creating or tweaking listing titles, bullets, descriptions and search terms.
If you want to proceed, we can offer instructions for implementing the various parts of the new listing gradually and watching the results after each test. This does not guarantee that a negative reaction will not occur, but it may help lessen the impact.