I use 4oz because it rightly tangles the rabbits up, but it will tangle with weeds and then likes. If you’re up on the moors it’s a nightmare with the heather. But I still wouldn’t use anything but the 4oz
The only reason this has made headlines in Ireland is due to hares found dead and being diagnosed with it. Coney Island was wiped out 3 years ago and you would be lucky to see 3 rabbits on it at night now!