I've seen some R-Pro Bosses around here, lightweight. I don't throw Bosses so can't really comment on them...they seem like they can fly far, but I think they'll beat up super fast with the huge wing and soft plastic.
I love my 162 R-pro boss... threw it 8-10 times at De la during the AM weekend, and most of my BEST drives were the r-pro boss. Its really good for about 400 depending on your arm. Throw it with just a touch of hyzer and it will stand up and run for days.
P.s. The r-pro bosses go...far really far. I had a couple throws with mine in the mid 500's today, just got it so still trying to learn it. Seems on par with my semi stable first run boss. the r-pro weights in at 167 and consistently was 30 feet longer than the rest of my bosses, throwing a normal golf shot not just going for distance. Fast and flat, but they glide!