My girlfriend starts with allwave 8'6 and perfect like firts board, i had mana 8'5 and she likes more, lighter and more responsive. 6 months ago changes to prowave 8'5 and me too, and love love love, specialy becuse its lighter and easier to move in the water. The board floats perfectly, only use in waves but if the water is flat you can use to paddle and go little excursion. Even want to try 8,0, im sure its floats perfectly, she is 54kg the only question is if she will have to Paddle too hard to catch waves, Her level is 1 year paddleling and catch waves very good but into the waves she needs time to read better the wave and to move ok for bottoms etc, but with time you will become tecnique no problem