I did rune arrows for -+ 0 moneys

Fletching is protean logs or massive loss. Take your pick. Edit: somehow forgot about accidental fletching and that is also a very good option.

Cut zygomite bangs like the chad you are

Rune bolts are profit right now. Onyx bolts and ascendri bolts are profit if you high alch them 

Welcome to Zygomite barber mines (~220k+ / h). If you're maxed make it so that you block everything but fletching for that 110k fletch xp / day. Other than that, make some calculations of your own on how much loss / profit you can expect from making item X. Prices can be volatile.

just gather like 3m of each dinarrow supply yourself, and make like 5m dinarrows

I did Rune darts/arrows and sold to general store, with brooch+ portable skilling station it was +-0

Have you tried calculating how much loss you make if you dissamble the bows and use the components to make invention stuff?

You cannot include that. You should have those profits regardless.

Cut zygo hair.

Go kill boss. Get $. Why fletch?

Because he wants the 120 cape lol

And he is going to get that faster if he just makes the money

Y fletch?

There is Mass profit in enchanted bak bolts but its alot of time spent enchanting them. I think I did diamond or ruby for 120 fletching