Right on. Makes sense. As an aside, do you have a preference on diameter and stiffness for when you srt or is it the same deal as your tethers?
Tethers and climbing rope are (2) separate things.
If I had no other considerations except for climbing and rappelling, I'd use a static 11mm rope without question as the thicker diameter and stiffness (gigiddy) are all advantages. However, they are bulky, heavy and wouldn't carry that anywhere unless climbing/rappelling was all I was doing.
On the opposite end is 8mm rope. I have 50' of Resc Tech and it's an awesome rope to hunt from and carry due to it's diameter, weight, packability and softness. However, the softness requires me to modify how I climb (not a deal breaker) and have to be more cautious how I rappel. Neither is a deal breaker and would be my go-to if I were hiking for miles and/or planned on moving around alot on a given hunt.
My primary SRT rope is 40' of 9mm C-IV. The 1mm difference and stiffer rope is noticeable. Using this, I don't have to modify my climbing style like I do the Resc Tech yet packs about the same in size and weight as 50' of Resc Tech. It's also much easier to climb and holds better for my rappel style. Essentially, I'm far more confident climbing/rappelling in in the dark as opposed to the Resc Tech.
In short...
Rappelling only:
Resc Tech without question. I would have to change my rappel style but that's a small price for the overall gains.
Climbing/rappelling only (think recreational climbing):
11mm rope as I wouldn't be concerned with carrying or hunting and the enjoyment comes from the climb and rappel.
Climbing/hunting/rappelling:
A stiff 9mm like the C-IV seems like a good middle ground. It overcomes the 8mm shortcomings and 11mm handicaps.
Side note:
If you've never climbed/rappelled before, I'd recommend 10mm HTP and practice in your yard. You may find the 10mm is good enough and you've saved about 50% the cost of something like C-IV or Resc Tech. If you find that you like it but want the weight/packability savings, then buy the more expensive rope. If you decide that climbing/rappelling isn't for you, you're not out as much comparatively speaking.