ITS ALL ABOUT GETTING THE PENETRATION JUST RIGHT
Really, any bits sticking out from the shaft will affect the flight of the shaft (accuracy) and will also affect shaft speed after the first few meters.
You are shooting bass and not grouper so look for getting the spear all the way throught the fish. Grouper hunters who shoot close range tend to have a really protruding point on there floppers to make sure the shaft stays in even if it has not penetrated all the way through the fish.
also make sure the flopper is lose from closed to 45 degrees and then holds open from 45 degress onwards.
To test this works properly, i hold the shaft at mid-point, pointing upwards with the tail on floor. With other hand whack the shaft about 10cm underneath the flopper. The flopper should fly open and hold at the top.
