I think the CP kit looks decent enough, relatively generic softs and nice looking willow.
We have in the past seen a few posts similar to this and having discussed this and read answers to similar posts, I would look at it differently. You have probably asked for the deal from them so it could be a bit churlish to say no at this point.
But my point is, ask yourself what you can do for your new sponsor, can you market their kit for them can you open new doors for them and what can you achieve to repay the faith your new sponsors are putting in you.