G'day Mate:
Sounds to me like you have way too much rudder throw, do you hold full up elevator while slowly increasing power, then release the elevator as the she starts to roll, holding just enough rudder (usually right rudder) to keep her straight, remember to hold the rudder, don't just bump it. the same way you do when driving a car, you hold the wheel as you go around a bend.
If you have too much throw it will be nearly impossible to judge just how much you need.
Best wishes,
Allan.