Dr Fate: I have only plugged redoses after an initial oral dose so may not apply completely... But I initially plugged a 50mg redose and found it underwhelming - second time was 80-90mg and much more satisfying. I have a feeling that oral and plugged dosages may not be as drastically different as is often the case - around 3/4 rather than 1/2 at a guesstimate. As I said, I had already taken an oral dose so tolerance may have played a part.
I have never gotten nausea from 6-APB via any ROA but the toilet dash has been a constant. Others get nausea pretty bad on the come-up, others no issues at all. I'd say it's worth trying orally to see how you react and even the worst affected seem to only have a brief phase of nausea just before it kicks in - really isn't bad at all, to be honest.
Pellets will contain 6-APB, microcystalline cellulose and magnesium stearate according to the ingredient list. Would imagine the cellulose may cause some thickening/gelling but nothing major but couldn't say for sure. Maybe the magnesium would help with nausea anyway? Not positive it's "the right type" of magnesium for that purpose but sure somebody could confirm.
Dean: I second eBay for buying cheap 0.001mg that do the job but you can also check
The Big & Dandy Scale Thread (New incarnation!) for some ideas