You are losing money if you don't add a crafting profession to the mix.
Mining + Herbalism + JC + Alchemy
You can make flasks, transmute an epic gem every day, transmute those saronite bars if the market for titanium is better. Your JC can try for an epic gem every day, and he can cut the epic you get from the transmuter for more profit, also he can cut blues and list them as well (they sell better than you would think)
Gathering is great, but combine it with a couple crafting professions and it gets much much better. If you add in an enchanter to DE junk you make with green gems/eternals, and an engineer to make arrows from eternals.. well, you see where its going.
It isnt hard to max a profession with this bot as your supplier, and it increases your profits substantially.