As you say Peach Curl is a blasted nuisance.
There are a couple of ways to help beat it though.
If your tree is small enough then rain protection in the spring as it breaks into bud will help enormously. I know that if the tree is getting large then this may not be practical so....
If you can without completely de-foliating you tree , pick of infected leaves and burn. Rake up fallen leaves and burn.
In the autumn spray at leaf fall with Bordeaux Mixture. ( It's a Copper Sulphate mixture).
Repeat with a couple of sprays as the buds swell in February just as they are breaking.
This should help a great deal.
As I first said though....if you can keep your tree dry in the first few weeks of growing in the spring, you will find that the infection is hugely reduced.
An apple a day.....keeps me in work.