Haven't tried mate..... I'll take a look at them when I switch to a larger water next month...… Been using lead clips lately, the Tench are costing me a bomb in leads..... Started using much smaller leads 1oz-1.5 oz as I'm fishing close in and they are a bit cheaper...……. The trouble with the smaller leads is that a vicious liner can move them and bobbins don't re set...…. Has you thinking that you've been done....