Do you? Or should you?
It's not that bad an idea to have multiple frames in your bag. Switching among them is fairly easy, and I do it all the time. Morning tennis is different from evening tennis, as my energy level is completely different.
Silicone in handle Prestige Pro IG in the morning (12.7oz). Leaded Wilsons in the afternoons and evenings (12.9-13.0oz).