Went back to Bayou for an opening word, Got a B in position 1 and an out-of-position U.
I pondered my second guess. I initially considered BURST, since that would put the U in new position, and tested for R, S, and T, the three consonants I usually go for first. But then I decided there was a good chance for another vowel. FLUID tested for a possible I, and put the U in a new position.
My second vowel possibility was eliminated, but with the added L and F, the answer was obvious.