Yeah, I think the sooner you start doing all those pelvic tilts etc the better as you've more amniotic fluid for the baby to move round in. I was just casually told not to worry about it at a 32 week scan, but now I'm nearly 38 weeks and it's not turned and my stomach feels as tight as a drum, so I'm anticipating there's not much room for manoevere. I can honestly say that since 34 weeks I've tried virtually everything bar ECV (which I'm having on Thurs) - and am about to try a homeopathic remedy so will let you know.
Am particularly annoyed as I really wanted a home birth and they get all funny about it with a breech.
One move I tried recently which def resulted in some squirming about and which might have been more successful had I tried it when I'd more room in there, is one where you lie on the floor, propping your bum and pelvis up on 4-5 pillows so it's at an angle, with your legs bent. I def felt a lot of movement (but pick a time when you know the baby is more active). Before that, I was trying the pelvic tilt with my body up an ironing board (!) but that felt less successful.
But, having said all this, general consesus seems to be plenty of time for the baby to turn... Sorry, can bore for Britain about this subject as I've looked into it a lot