I had to replace that hose not too long ago. No one had i in stock so I used some regular non molded hose. Mine has a slight kink in it...I made it as short enough as possible so it was as slight a kink as possible...sounds like what your talking about.
I have not had any issues...I check it often as I am not 100% sold on it yet but I have not noticed any leaks or temp issues. Drove it monday and it was in the mid 90's with semi crap humidity (cool night time was 40+%). It never got over 192* even in stop and go traffic...stock radiator.