FHG templates change - good or bad idea?
 

Let's suppose sponsor has made better converting design for FHGs or just wants to try something new hoping it will do better. What will be better to do in this case - change existing templates or add new ones? I am interested mostly in oppinion of webmasters who use sponsor's FHGs on their resources.
So - change or add new?

Add new. Variety is the spice of life. :thumbsup

We already have 4 designs for every site :)

Actually, we think of changing those converting worse to the better ones (adding new ones is a separate process and it will continue constantly)... but we are in doubt if it would be accepted well by those webmasters who already have links to current FHG designs established? Or it is still better to add new ones and let webmasters decide which ones they want to use?