Swopping up brakes is pretty costly.
The RS has a swinglink
The RSC has that plus static position adjust (sometimes called free stroke adjust)
The standard Code R brakes are surprisingly good if bled properly. I come from super powerful Formula “the One” then the marvellously modulated “Hope T3 X2”) I thought I’d be upgrading the Code R’s to Hopes (probably T4 E4) but I don’t feel the need.
I’m very impressed by the base level Kit on the KSL. The gears are great. I’m coming from 11s XT mech / XTR lever with XO1 cassette.
don’t dash to upgrade.
The shop mechanic told me that R lever “feel” can be adjusted by the bleed technique. Mine feel great. Quite close to the bar on full engagement, with nice modulation too)
It you want to adjust static lever position then this thread included details from Rob about the “Deslackinator” fir Sram Code R - here’s a link.
I’m ordering some.