I thought I didn't have any 4 x ggp but I just had a look and I have a few Russel and Drinnen/Drennan/Wilsons on the Scottish side which I had forgotten about and the Worleys on the English side which I expect Merry and Kiterunner could pull to peices to be honest - I inherited it from someone I thought at the time knew what they were doing but I'm not so sure now! That was a quite a few years ago - I have corrected a lot of my Worleys but not touched the 4xggp.