Verified answer

I also use CHI and it works really well for my hair. If I were you, I would go with the CHI Turbo since you have used it and know its a good brand. You can get more information, reviews, and more about the CHI Turbo here http://hairstraighteners.org/chi-hair-straightener... Sedu is good as well generally but you already know CHI works good on your hair plus you have the other CHI products. Btw I have used the CHI silk infusion with other straighteners and it still worked but not as good as with CHI because the other straighteners weren't that good of quality. So I think as long as the straightener is of good quality, you can still use silk infusion and get good results.

If you want a professional flat iron and you are ok with spending around $140 I would highly recommend the Karmin G3 Salon Pro, it heats up to 450f with temperature control, tourmaline ceramic plates with rounded edges which makes it great for also curling your hair. Also has a 3 year warranty. If you buy from MyHairStylingTools.com they are also giving away a free heat matt/carrying case and some heat serum that works really well. If you do look at other irons make sure to stay away from irons with painted plates (colored plates) these can damage your hair. You can also check reviews at http://flatironsreviews.com/ to see their ranking of the top 10 flat irons. You can also check Google for reviews on Karmin. Good luck and I hope this helps.