I'm 85-86kg. Unsure how a hundred and fifteen Twintip can be a sinker. I recognize that I'm able to uphaul all the way down to 95L/98L board without difficulty. Speculate if that Twintip is filled with drinking water.. lol My smallest is Dyno eighty five and that is super economical board Primarily with an individual fin. I might in no way visit 77