Ask the bailiff if he's available . there's two area's in one of my swim's with thick weed he asked me do you want it cutting back and thining out lilli pads afew year's ago.
Try esp avid nash fox all four work fine although don't have a slit .yes you can get korda type with the slit for less than half the price.you could also try another sleeve and Pop the bead over that.
I allways keep the cork stoppers from my single malt whisky bottles and trim to shape and use them for my chods. The carp in my lakes may be alcoholics.