I just strung my racquet with beast 17/premier attack 16 hybrid last night for the first time and I am hitting the courts tonight to see how it feels.
I strung beast in mains @55lbs and premier attack in crosses @60lbs.
Will report back to give you guys an update.
As for stringing it was fairly easy. Beast seemed very stiff and there was practically zero stretch in the string. Premier attack seemed super super soft and flexible with a decent amount of stretch in them (usually needed 2 pulls before I could clamp it).
Very intrigued how this performs because it looks wicked with the green and black in my blue Dunlop!
Racquet: Wilson PS97 String: Prince syn gut @55lbs in mains, ISOSPEED Baseline Control 16 @50lbs in crosses