i think the subject of tape around the top and full length scuff sheets are not comparible, i mean the scuff sheet in a vein and surface damage respect, where as the tape will increase rigidity of the handle, splice and upper areas.
For those of us who refurb bats when they start to look tatty or jaded, this could be a good option to save money, only if, as stated by vic the stickers do not peel off. As then new stickers would not be required, it would protect the upper areas of the bat from cracking (i have found a few bats i have owned have cracked further up the edge) and for the weight gain issue, it would so minimal that it shouldnt be an issue, we are talking an extra 20cm from a normal scuff sheet. If it is an issue then the weight of the sheet further up the bat sohuld counteract that of the weight of the sheet fruther down, weight really really shouldn't be an issue though. It is fairly discreet too if a clear scuff is used.