Hi, New to the forum been a carpenter for about 7 years now, mainly do 1st fix roofs, floors etc. A couple of the glazed units in my house have misted up so I'm going to replace them. Ive fitted a few window frames before but always let someone else glaze them. My question is how do you put the packers into to pack the glass without cracking the glass when you then go to put the beads back in? (My only very brief experience with glass is cracking a unit because id put the packers in wrong but I don't understand the 'right way to put the glass packers in') Any help would be much appreciated, thanks.