I believe the number are correct, as I've used suboxone with pretty much every ROA, except for smoking them. Sublingual is definately 30%-40% tops. I let my strips dissolve for about twenty minutes, and I pretty much generally get the same effect out of them every time. If I iv them, .15mg shots give me the same effect as my .5mg sublingual dosage. And back when I was on the tablets I was shooting about .8mg a day for months. I had to take a trip for my grandfathers funeral, so I switched to insflation as I didn't want to get caught carrying around a bunch of rigs in my back pack. I decided to sniff 1mg a day, and adjusted to that dosage after a couple days and stayed on it for about two weeks till I got home when I started injecting again. From that point on until my relapse on full agonist, I did a total of three .2mg shots a day for a total of .6mg, which would translate into 2 mg sublingual. There's a lot of math involved with this shit, but from my experience I do believe insufflation raises the BA 50%. However, I never found that ROA to be any more euphoric than sublingual and for that fact, the only advantage I found in iv was the ability to get a nice lift dosing multiple times a day, and that I was able to use full agonists less than 24 hours after my last shot of sub.
IMO you should just stick to one roa, otherwise your going to be fucking up your tolerance and not receiving a steady dose of your suboxone. I would insufflated or plug now only if I had to stretch my buprenorphine out longer. If anyone finds insufflation or pluggin more euphoric, it's most likely because their absorbing more of the drug and that glow will only last a few days before tolerance settles back in. The best way to maintain and get euphoria is to take dosages of two mg or under. Some people theorize that the reason for less is more is because buprenorphines metabolite, norbuprenorphine has room to occupy receptors not filled by bupe. Tis could be the case, but it could also be that it's just because at lower dosages of bupe, the drop of the drug in blood levels is more noticeable and the receptors are not fully saturated, which would then make each dosage create more euphoria. It's kind of like how when you're on heroin, you feel higher the longer you wait for your next shot