I've been prescribed & taking triazolam for about the last 6 - 9 months, with periods prior to that as well. I like in the US, and am about 220 lbs/100 kg (though I am not sure how large a factor body weight plays in dosing benzos, I am sure it is relative). I take it for insomnia, but I know by now that it will take 1-1.5 hrs for it to reach a peak/powerful enough effect for sleep, and that's only taking into account a smaller dose (0.5mg sublingual).
This brings me to my next point: I do notice it is more potent via the sublingual route as long as I allow it a full 15 minutes to dissolve without swallowing, talking, anything. I have tried it with the oral route and sublingual is also a few minutes faster for onset (15 - 20 minutes faster). It is an annoying property inherent to triazolam, that it is a better insomnia med than Xanax (my daytime anxiety/appetite stimulant med) but Xanax works twice as fast for me! A study documented increases in peak plasma concentration (max potency of drug) and total area under the curve (amount of medication present in body) without effects being lengthened (no change in elimination half life of drug).
Here's that study:
http://www.ncbi.nlm.nih.gov/pubmed/3958225
I have never snorted it but was curious and got to this thread. I am not one to snort much of anything any more, too much sensitivity from previous misadventures, but it doesn;t burn sublingually so maybe it won't if I snort it.
But is there a point? I am not sure. The classical ideas related to benzos are that if they aren't soluble in water they are wasteful to snort (you might get a buzz from snorting Xanax or Valium but it would be short lived). Looking at some basic online resources I see it is soluble in water in a concentration somewhere in the range of 5 micrograms per milliliter to 20 micrograms per milliliter. In comparison alprazolam (Xanax) is 32 - 40 micrograms per milliliter.
http://www.drugbank.ca/drugs/DB00897
But here is where things get interesting. Midazolam, espoused as a "water-soluble" benzo does not have very high solubility numbers, only about 10 - 24 micrograms per milligram. That is, at physiological pH of 7. However, if the pH of the solution is decreased via acidification, the solubility of midazolam changes because it is pH dependent. Solubility increases for midazolam with decreasing pH, and at pH 3 has a solubility of 10 - 20 milligrams per milliliter (thats about three orders of magnitude!) This is how they make injectable midazolam ampules for medical use; the pH in the vials is kept stabilised between pH 3 - 3.5.
http://www.pharminfotech.co.nz/manual/Formulation/mixtures/midazolam.html