Try getting a basin full of hot water (not hot enough to make your hands uncomfortable), then take your blades under the water and gently bend them a few degrees. The warm water should soften them up enough to make the blades pliable. I have also heard of running a warm hairdryer over the plastic to make it bendable (keep it at a distance so they don't melt!). As always, be careful not to break the blade, and don't give it too much droop! That's hard to fix. Just do a little bit at first, and if you decide that it needs more, you can always go back and do it again.