I only footed with 1" or 1.5" 2018 or 2020,it only adds 12-14 grs. of weight to the front end.Most of the Axis/MFX I footed were used ones I've bought and they just had the aluminum inserts aready installed.Axis/MFX are tough shafts,but I feel the weakest point is the open end of the shaft.And usally 200 and 250 points are longer and can put alot of leverage on the open end on a glancing blow off a hard object.For stumping arrows I'll add a 1/2 piece on the knock end,sometimes they will crack at the nock end.With both ends footed it makes a very tough arrow.Carbon Express has what they call Bulldog collars for the nock end for their Maxima line.It just takes a scrap 2018 or 2020(I use on 500's) to make enough footings for a dozen arrows.For my 70#@27 21st Century I shoot Beman Black Max 300 footed with 1.5" 2016,100 gr. brass insert and 175 gr.point,total weight around 675 grs.I like to foot them if I plan on shooting heavy points on a small diameter shaft.