I have the same syringes, i can give you a faq right here.
first of all i find this to be 2x better then snorting, and it is fucking wonderful.
If you want to plug 30mg you can, but doing your normal 60mg will be outrageous.
So crush up the pill like you would to snort it, exept on a small piece of paper. When its very finely crushed, i reccomend using a razor or something take your syringe, with the plunger out, hold the bottom, and with your paper folded like a hot dog, with the oxy in the middle, backload(dump through the back) the oxy into the syringe, and lick the paper hehe.
Now when putting the plunger back in, stick it just far enough in so the oxy cant come out, tilt back and push the plunger up, so the oxy is against the plunger, up to the end of the syringe.
Now get some hot water, and just suck it up with the oxy in the syringe. Leave some air at the end of the syringe, hold the end, and shake for a few seconds.
Now you dont have to follow that exactly, but its what ido, and its the fastest way possible.
Now lay on your side, get some toilet paper, and lube up like an half inch of the syringe with lotion, or what not and slowly slide it in. when its about an inch in you can pull the plunger all the way down, wait a few seconds, and take it out, and leave it aside to be cleaned.
Now whipe your ass(lol) and continue to lay there for 3-5 minutes, your stomach will gurgle like you have to take a shit, but its just absorbing the oxy.
You can now get up, clean your hands and syringe, and go sit down somewhere to enjoy your high. Usually the first signs of my high when i plug is pressure in your head.
ALSO!!! Make sure this is after you have gone to the bathroom, if it was less then 2 hours ago your fine.
Any questions you can PM about, i know alot on this subject. Also, the BA is near 99% so its just like you IMed, without the needle, and its about 20-30% more potent, in terms of BA, then snorting.