I cannot say thatDKP1 is wrong but I have an idea that it is 26 for pilot. Certainly 26 when you apply. This means, in practise 26 1/2 is the latest.
As for plenty of time, true even for 26 at entry but it would also be wasted time.
Trawl through the OASC Sticky thread above. Ignore all RAF police jibes, and learn what you can. If your unit has a commissioning club then join that. If not find a firendly aircrew and talk with them.
Get along to the AFCO and get the pukka gen. They may have given you duff advice initially but they have nothing to lose now. As your boss knows your ambitions get him to give you additional taks. Look for secondary and additional duties that can be used to further your Cv and demonstate your leadership potential - youth activities, sports organiser, exped organiser etc.