In reply to ashley1_scott:
> (In reply to Ramblin dave)
>
> I do stretching at the start and finish of all my climbing sessions, I have taken parts from Yoga, Ballet and Karate to come up with something that works for me. One of my climbing partners joins me with the stretching but one pretty much refuses to do any, strangely when it comes to a high step or taking a rest in a frog position the bloke that doesn't stretch always seems to have trouble.
Don't know why he refuses but if he particularly refuses the pre-climbing stretching it might be because he wants to avoid getting injured. I used to stretch (static holds etc) before climbing but when I looked a bit more into it I realised that I am more likely to get injured if I stretch so I replaced most of the stretching with mobility exercises. Might be worth bearing in mind if you find you get injured often.
Regarding the original post, I am in the same boat and had the same goal/wish. Then I took up yoga for a couple of years and it did wonders for my general flexibility, agility, body awareness, balance etc and I was getting noticeably less injuries from climbing. HOWEVER my hamstrings remained quite stiff, there was some improvement but I can't say I ever moved beyond average if that even.
For super tight hamstrings I found that a key challenge is to even be able to get into positions that stretch them effectively (I couldn't even sit down with legs stretched) - using blocks (to sit on) and straps really helped me and also doing lots of stretching while standing up and letting gravity do the work, if you are as inflexible as me you'll find it more effective to stretch with bent knees for a while until you are flexible enough to be effective with straight knees.