In reply to Jackob:
> Is it worth sacrficiing time climbing outdoors to fignerboard/ campus board / train in doors
> Should i sacrifice a sport climbing session to go bouldering outside?
Simple question, do you want to?
If you have only bouldered V3 then it's fairly likely that stopping route climbing for a while and focusing on bouldering (indoors and out) may help push your grade in the long run. I probably wouldn't hang on the fingerboard quite yet, at least until you've done a few weeks/months of solid bouldering.
But climbing is all about motivation. If are motivated to train because you know you will push your grade, it becomes fun - I enjoy doing power endurance circuits at the wall, because every time I manage a few moves further, it motivates me to know that I'm now more likely to tick my projects next time I'm rock climbing.
That said, many people (like me) only go indoor climbing because it provides 'a quick hit' of climbing when time constraints preclude a session on the rock... in that sense, I personally would never miss a day's rock climbing to go indoors!