Just made my first locked brummel on the dynaglide from the group purchase and made one of the "opie ridgelines". Used flower arranging wire (green stuff).
It worked with some of tinkering. Im wondering if the open loop of the loop splicing needle will allow the end of the line you are trying to pull thru the sheath to come out because it does not squeeze the line end as it pulls thru like the wire?
I used to do alot of splicing of rope when I built ropes courses around the country, fun to get back to it.