SRAM Force D1 to E1 upgrade compatability question

Hi everyone. I’m considering upgrading from SRAM Force D1 to the E1 shifters for the universally praised improvement in braking performance (I ride up and down decent-sized hills regularly).

I’m wondering if I really need to replace the Force D1 brake calipers or can I just upgrade the levers?

I read a post from April where someone was asking about the ergonomic difference between D1 and E1, and a few people said they had done what I’m proposing successfully in that thread, I guess I’m just hoping for more validation before I spend a chunk of change to do this.

Thanks

I only upgraded from Force D1 to Red E1 shifters. I kept the Force D1 brake calipers. The difference in braking performance - on top of the improved ergonomics in which I can do one-finger braking without the brake lever hitting my other fingers - is night and day.