Swapping out to a lightweight frame for the purpose of hill climbing?
I'm currently using a carbon gravel/endurance type frame as my road bike. It's not the lightest, but with almost full carbon components except alloy stem and drop bar, it weighs-in around the 17-18 lbs. range. I don't have many complaints about the frame and I have the option of going with wider tires if I choose, but I'm currently using 28-30c road tires (frame accommodates 45c tires). Though I do like road climbing and I've been entertaining the thought of getting a dedicated carbon road frame especially for hills. I don't do any competitive racing and I do alright keeping up on group rides. I would most likely do a parts swap to the new frame and use the older carbon frame as a dedicated gravel bike (my current gravel bike is alloy). Another option I was thinking was doing more weight cutting on the current frame maybe going with an integrated carbon stem/drop bar combination plus other weight cut measures, but I'm not sure it would make that much of a difference.
Anyways, just looking to get opinions if getting a lighter road frame would make sense for my intended purpose. Also I would do the work myself and I think the swap would be fairly straight forward. Thanks!