I am not entirely sure the 18 hour ventures are worth it once you acquire level 50. (Rank XIII)
A friend of mine has her botanist retainer over 400 gathering (she gave it her BTN gear). She send it out on an 18 hour venture and it returns with Crawler Cocoons. Three days in a row now.
I could spend an hour on my BTN and come back with more than that... (also 400+ gathering). Specifically, 2-3mins to get a minimum of 15 Cocoons. Not to mention all the other places I can visit in an hour. The pet is nice and all. But once I get it, I have no reason to do 18 hour Venture ever again. (I know about taff. cloth and other items.) I'd rather spend my ventures on Quicks and take 18 stabs in the dark for an item I can sell for gil to 100% buy the item I am looking for.
Should I bother to get my BTN to 383 gathering or should I just keep sending her on Quick Ventures?