In reply to Climbing Stew:
Of course it's horses for courses and there's a poo load of science now. But doing a route alternately isn't great for warm ups either, it can work out at only 5-10mins actual climbing for the first 30mins in there, 10-15mins of low intensity continuous is way better. That's how people pull muscles, finger pulleys etc they think because they've been in there ages they've warmed up, but haven't. Obviously you should also really make it relevant grade wise, different styles to work all muscles, hr monitor, followed by stretching and then progress build up of difficulty. You could also add in self belays, rowing, skiergo or rowing machine, depends how serious you want to take it. But, i did pitch my response relative to the ops previous threads.
Bouldering isn't that good either unless walls have an easy traverse line so you can actually be on long enough to warm up. If anything easy roped routes are better warm ups for bouldering, not the other way around.