In this video, Joel Tadman tests out the Edel SMS iron, which is one of very few irons in existence that feature adjustable weights. Edel claims that positioning the weights in the correct position for your swing and strike, golfers should experience improved distance and accuracy but we wanted to put this theory to the test. So Joel takes the irons onto a par three at Burghley Park Golf Club with his Full Swing Kit launch monitor and moved the weights around to see what effect it really had.