In reply to Removed Userjess13:
> My first toe is bigger than my big toe so I tend to climb on the end of my toes which is ok until I encounter small pockets eg Rheinstor where I cant get up anything, modern climbing shoes dont help as they are all shaped towards the big toe
If you mean the second toe is longer than the big toe (the big toe *is* the first toe), it's called "Morton's toe" and you can search online and see which climbing shoes are recommended for it -- most technical climbing shoes are fairly asymmetrical, but there are some that seem to suit Morton's toe; I've seen recs for the Evolv Prime.
> Another observation is that close up photographs of people crimping on hard gritstone shows most with what look like double jointed finger ends
No, that's fingers being bent into hyper-extension by force; that's just what happens when you crimp on small holds.
For people who actually have hyper-mobility (what's often called "double-jointedness"), it's not a bonus in climbing, as their joints are more unstable and vulnerable to injury.