I've attempted to reuse olives on mtb levers and it's never gone well. Barbs aren't usually a problem. I reckon I've got a few Shimano olives around so I'll give them a go.
Heat up the hose a bit, cut a slit from the end of the barb down the hose and remove with pliers. Lot of work to save a few pounds, but desperate times call for desperate measures.
I've attempted to reuse olives on mtb levers and it's never gone well. Barbs aren't usually a problem. I reckon I've got a few Shimano olives around so I'll give them a go.