I took 7g of Maeng Da kratom on an empty stomach. I used the toss and wash method. I'm not opiate tolerant at all. I do opiates maybe once every 3-4 months, and when I do, it's only like 150mg of codeine.
Definitely try the less is more approach. There is a heading for kratom in the OD Directory linked in my signature and "The Kratom Thread" there will definitely be good reading.