In reply to Kid Spatula:
> (In reply to lm610)
>
> If you tie your ropes together you'll get to the ground on stretch (ish). Or you'll have to take leaver biners.
>
> Also if they say one 60m rope to abseil that's only a 30m abseil.
These comments are weird. What else would you do with do ropes besides tying them together? And what does the "ish" actually mean? Saying you'll reach the ground with stretch basically asserts the rap in question can be done with two 50 m ropes. I can't confirm that; for one thing there is more than one option for how to do the raps, and I've heard people speak of rope-stretching raps with two 60m ropes.
The route can be rappelled (from the top of pitch 4) with a single 60m rope. If you have two 60m ropes, you can do fewer rappels (two) and also stay off the climbing route (you are still rapping down routes/variations, but they are less likely to be occupied).
Rappelling with one rope 10m shorter than the other is loaded with problems. Most of these can be mitigated by knotting the ends of the rappel lines to guard against going off them, but Red Rocks is notorious for snagging ropes and knots in the ends will increase the likelihood that an end gets jammed somewhere. This isn't much of a problem most of the time, but Red Rocks can also be very windy, and if your ropes blow horizontally and jam off to the side, you could be in for a major epic.