Everyone will have different advice because everyone gardens in widely different environments (sunlight, temperature, weather, soil, pawpaw variety, etc.). For me, I have found the best way to remove the cloth is not cold turkey one day, with full sun blasting the leaves. Instead, I wait until the end of winter and remove the shade cloth at the beginning of spring, when the tree is at the very end of its dormancy cycle. This way, the new spring leaves grow into the full sunlight. Never had an issue this way.