Well my battle to rid the bubble algae from the branches of my branching hammers has finally put me over the top. I just couldn't get a toothbrush with peroxide into them to scrub where the bubbles were. MY 40+ head hammers are now no more than about 6 head frags. Lots of singles head frags. All of the frags got a good cleaning now that they were apart.
On a positive note, fragging branching hammers is so easy compared to SPS. And I have plenty of frags for the swap.