Just purchased my first Grenadine Knit Square Bottom tie today. It's a Boss Hugo Boss 2-tone tie in chocalate and yellow green. Debating about returning or selling it. The colors are great, but I am not sure about the square bottom.
I just bought a couple of knit ties in Hardy Amies' dying sale on Saville Row, it was pretty depressing but the ties are nice and were very very cheap, I am not sure about the square bottom, but I am going to try them out and see if they become 'comfortable' I am sure its just a case of how used to them you are.