sounds good. I (while doing my fish in cylce) check my ammonia, nitrites, PH daily and then once a week check the nitrates. since you are doing daily or almost daily water changes the nitrates aren't really going to have a chance to build up but it is good to keep an eye on things. keep track of your PH just to make sure things are not dropping. you don't need to test it every day, but I did because it was easy and I did actually see some changes. plus, you will get a good idea of what your stable PH id going to be for your tank. it will soon become obvious that it is stable and you will notice right away when it changes.
PH changes may occur when you are going through the nitrite to nitrate conversion (at least they do when you do a fishLESS)