9 foot cement popcorn ceiling

I am very close to ordering my x-pole 45 mm tg. I live in an apartment building with hallow-dropped ceilings, except for one room that has a 9 ft popcorn ceiling.  I am wondering do I order the extenstion for 9-10 ft. or stick with the 7-9ft pole. Has anyone put their x-pole up on a cement popcorn ceiling... ? How was the suction/damage to the ceiling?