i keep a supply of short and long alum adapters (21-43 grains, average), and steel adapters in 75, 100 and 125 grains. and inserts: 25gr alum and 100 grain brass. also a goodly supply of field point weights: 100, 125, 145, 160, 175, 200, 250, 300.
for the most part, i find that using the cheaper 25gr alum inserts work out fine. i only use the 100gr brass inserts if i really need to mega boost the front end.
i use 11/32" 135gr judos for roving, and vary the adapters, plus optional slip over steel and brass nuts, to adjust the weight as needed.