had once obtained 10g pure DXM
Hydrobromide powder (back when it was a bit easier). It comes on quicker, feels cleaner, and maybe a tad bit stronger than drinking it in syrup (mostly because it gets digested quicker). 1g of pure powder would definitely be a pretty intense experience, and SWIM wouldn't recommend it for anyone except the most experienced.
SWIM would also suggest that SWIY make for damn sure what SWIY is getting in those capsules is pure and not mixed with anything and would weigh it out himself. Definitely wouldn't want to bite off more than SWIY's mind or body can chew. Also, SWIM really hopes someone isn't selling 1g capsules of DXM on the street. Way too easy to ingest a potentially life threatening dose that way. Two pills containing the power of 2000mg DXM is a pretty scary thought to SWIM.
As far as the taste is concerned. . . well. . . definitely wouldn't eat it right out the jar. It's very bitter, but that's what capsules are for.