I have used 60lb braid, with a 20-30 ft top shot of 40lb mono, with my islander and it works great. I believe it is a uni-knot that you connect the braid and mono with. Not as much forgiveness as mono so you can't have someone horsing a fish in, but it is more sensitive making for a fun fight.
Also up here in Nanaimo we get the snotty algae in the water for a period, and at times it is so bad it will get so much in the top eyelet of the rod you cant reel in your mainline. With the braided mainline it will actually cut through the snot in your eyelet and the algae doesnt stick to it nearly as bad as the mono. I run the braid until about mid-late june, then switch back to mono when I start getting more newbies in my boat, who need the help of the stretch of the mono.