At short distances a large fletching has definite advantages in controlling the poor flight of an arrow, which can be due to its unstable flight over the first 20 metres or poor loosing.
Low profile long feathers will give greater control due to their lightness, flexibility, additional bow clearance and space saving in the ten-ring.
Larger arrow diameters will also improve the odds of hitting target separation lines and gaining valuable points, normally, arrows of two to three sizes can be used but a longer arrow must be used to maintain your normal spine.
Alternatively the use normal arrows and increase the pile weight and fletch with low profiled long feathers.
A fair compromise is to use arrows two to three sizes up, one to two inches longer with low profile long arrows.