Grr Fly reels (well mine anyway) take 50 yards/metres of backing and a full fly line so why do manufacturers insist on supplying backing on 100m plus spools!!! Just spent the morning measuring out the 50m I need from a 100m spool and then the next 3 hours trying to untangle it, as the whole 100m only cost £6 there is a huge temptation just to bin the tangled 50m and use the 50m that is still on the spool. Surely there is a way of either just supplying spools of 50m (cardboard would be fine) or marking the backing every 50m so that you could just take it from the spool to the reel knowing that you had 50m!!! It should not be this hard