Before actually starting with your pump, we found out it is quite helpful to drink quite a lot water and take a hot bath. With these preparations your tissue tends to become more flexible and the blood circulation is increased, also when it comes to clit pumping. Make sure you use a good amount of lube so there won't be any skin irritations if you are using much pressure. And in our opinion the most satisfying results can be reached when using just so much pressure, that it ALMOST hurts. Using too less, won't make your cunt swollen at all. Good luck and keep us informed how it worked please!