Dr. Colorchip

21CX5 Signature
I won't tell you how to spend your own money. I'm just trying to help provide info so you can make an informed decision for yourself.

The one you just linked has a good review from a guy who says it was a perfect match for his 25D paint. But it only has 8 reviews total, and an average rating of 3.9/5. Plus it looks like it isn't currently available to buy. You may want to contact the seller to see when/if they will restock, and what their return policy is (in case it doesn't match as well as you want it to).
Thank you