Man, take my advice, please. Just do the taper and ride it out. I just posted in another thread about how I am USING suboxone to come off a 2,000 gram (yes, TWO FUCKING KILOS) a month habit with kratom. You will trick yourself into believing that it is just some "natural legal plant that grows in the ground" and you will end up staying on it to stave off the PAWS. Just please, do not switch to kratom. In my honest opinion, it is far more euphoric than subs and insidious because it tricks you with its benign safety profile, legality, and is so easily obtained. But, as always, your mileage may vary....In my opinion, if your tolerence is down, kratom's euphoria rivals other drugs such as oxycodone (to me, it's actually more euphoric...but many would argue me on that...). Anyhow, the other posters are correct; kratom will be blocked for quite some time (minimum 72-100 hours) after long term buprenorphine use.
Withdrawal is a bitch, and I really wish you all the best. PM me if you feel like you need some advice if you DO choose the kratom, cause I've been there and done that.
Much love,
BirdOfPrey