I always advocate taking profit when it's presented. Question is, what's your comfortable level in BKN? There is a long game at play and the pieces are moving. Champs cat is out of the bag, I think it will precipitate a better offer, either from a competing force or from them. Don't forget they have a well out of the money note so to lose at $1.75 say, is out of the question.
Psychology of PE, competitive by nature. If Champ did the note at 2.20 ish, the current offer at a 1.00 has set the starting price.
Food for thought
BKN Price at posting:
83.5¢ Sentiment: Buy Disclosure: Held