ps.
I think 1.5m may be optomistic.
I dont know the diameter of a tin, but, say, its 25cm. That gives a circumferance of 78cm ish, so 1.5m wouldnt quite even be two trips around the tin.
I normally spin arround a few times, working up the tin, so as theres then a flappy bit at the top, which i can then fold over and seal with the last movement before i cut the line.
When times are hard, two revolutions, and then two over the top in a cross seems to work fine also, but its more trouble to do (takes longer)