Ritalin pills are a terrible thing to waste via snorting. Studies have shown that up to 78 percent of the medicinal qualties of the drug goes up in the smoke in a non-digestable form.
For full effect, Ritalin pills should be taken in doses of 3 or 4. The pills should not be crushed or broken, but quickly dipped in water for 3 seconds and then forcefully inserted deep into the confines of your rectum. The deeper inserted, the greater the density of rectal receptors which can absorb the key chemicals.
On the left coast, it is called, "ass surfing" and in NYC and Jersey, it is called
"pill piping"
Feel free to restate questions I may have missed.
Hope that helps.