Sycamore - 1) Lifting - removal of some of the tertiary growth at the lower outer edges of the canopy (NOT removal of lower branches). Taking the weight off tertiary growth has the effect of allowing these thin branches to lift. 2) Removal of some of the thinner, spindly internal crossing branches to make the canopy more airy - but NOT removal of the major branches. The tree should be able to heal these smaller wounds. 3) Trimming extended laterals - by that I mean taking off outer sections of the canopy which extend beyond the average circumference of the main canopy. 4) All of this work I would therefore propose for a 4.5 metre reduction across the circumference of the tree.