These weights are excellent, with them being flat they come straight off the bottom and rise quicker to the surface. I fished two rods one night at Tynemouth and lost just one rig all night, rare for there lol. Never had any problem with them spinning either Lee, they just came straight in mate. I never tried fishing with them in a big sea on the beach but tried them when ordinary weights had no chance of staying out and they always held ok, even without grippers.
Jim.