Doesn't CS does link between levels except for 12th leading to the 13th which is an awful part of the routing. The other level changes are incorprated into the holes....no?
Ciao
Not sure what "doesn't CS does link" means but my reply to my guess at the meaning is,,
There are elevation changes on say 7, 14, 18 but they are all on the upper level, likewise 12 does climb but it's still doesn't rise to the upper level. Perhaps you might sight 3 as the tee is half way up the slope but realistically 1-4 on the lower level, climb up to 5 then play the upper level to 9. down to 10 and along to 12, then its 13 to 10 on the upper level.
None of these compare to 3 and 5 nevermind 7, 16, 17.
I'd say the vertical rise is very similar from 12 at CS and from 6 at RD but at RD the distance is longer reducing the incline severity % wise.
Ciao LOL