i have thick hair. my hair goes up to my shoulders. i want a hair straightener that keeps my hair straight and keep the frizziness down. im thinking about either getting a chi or a titanium tools professional straightener. the chi says it heats up to 300 something and the professional straightener says it heats up to 400 something. which would be the best one to buy? the chi is only 20 more dollars than the professional one. so which one should i buy???

