Hi- I need new straighteners that don’t make my hair frizzy at the ends, even when using heat protection spray. I’m throughly confused! I’ve read the Mumsnet threads and GHD, Cloud Nine and Kipozi all are recommended plus the newer steam pods. Help! Is there really a difference with the very expensive versions (I will invest if they really make a difference, but just worry they may be the same as my old ones). If there is a difference, please can you let me know why? Do they give a smoother result or are they just quicker! Thank you!