Try this...... Take a fine needle and make a hole through the centre of the flyline and out the side. Take some suitable mono, slightly less dia than the needle and thread through and out the side. With some very fine wet and dry paper rough up a short section of the mono, use the paper dry. Now apply a small amount of quality superglue to the roughened section of mono, locktight not poundland! Slowly pull the mono through the fly line untill everything tightens up. Leave to set for a while, pull to test and trim the mono flush to the flyline.
I have used this method for a few years now for river and Resevoir fishing without any problems. When you have a fish on the conection comes through the rings without any fuss at all
Try it out but make sure you use quality superglue for plastics and rubber, make sure the mono is clean and roughened and test the connection well.
Its the neatest connection you can have.
Would like some feedback on this good or bad, as dont know of anyone else using this method.
Steve