In reply to llanberis36:
> I agree with paul, training for routes is not just about pulling hard, anyone can get strong at the wall and elsewhere, its about learning about the rock, how it feels, body positions, how to use holds the best, where and how to clip, none of this can you get pulling on resin
I think its more accurate to think of resin as just another type of rock. When you go from say limestone to gritstone at first you'll find it pretty hard. It's a very different style of climbing, as would be granite or slate or ...
Pretty much all experienced climbers know this and lower their expectations and grade when first climbing in an area that is new to them.
The main difference from indoor to outdoor climbing is that there is far more choice for footholds on real rock and that can be a little a confusing at first.
Everything else though is the same. If you really think you can't learn the other skills you mention indoors then I'd guess you haven't spent much time at a modern indoor wall with good routesetting. Modern climbing walls are an excellent way to learn how to climb and the results speak for themselves.