The concept of instantaneous teleportation, I have come to realize, is completely impossible. in order for you to disappear in one place and appear at the exact same moment you disappeared in another location would require that there be an extra copy of you at the desired location. Because otherwise it's just not possible. And therein lies the mistake made by so many of the sorcerers preceding me; they tried to make it instantaneous and ended up as stains on the floor. Or wall. Or in the mouth of an unsuspecting and permanently scarred Earth pony foal. But what if rather than an instant process, we try to make it only nearly instant. The difference in speed of transport would be negligible at worst and work just as well without severing the extremities of the caster.
I believe I've managed to lay the whole process out on paper, but of course it's all still theoretical. And honestly, I don't know if I'll be able to put whatever object I'm teleporting back together, as the process involves being torn apart circle by circle, moved across a measured distance at speeds exceeding the fastest Pegasi couriers, and being reconstructed at the desired location. I'm also completely unaware of whether or not that whole ordeal is capable of being survived, but that's what testing is for, isn't it?