The Futures R6 HC Legacy Series Thruster Fin Set is a medium sized fin with a rake template and balanced feel for increased hold through carves. The R6 Legacy Series Thruster is a medium sized fin with a rake template and balanced feel for increased hold through carves. Template Category | Rake (drawn-out, control, drive). Construction | Honeycomb. Size | Medium (145 195 lbs). Ride Number | Balanced – 5.4