If you live in Canada i would suggest you buy a Z-Car.. they are readily available. If your in the states you midaswell go with the microsizer. A microsizer is the american Bit Char-G. It isnt a clone it is the real deal, and its fully compatible. Z-Cars are fully compatible with everything except the bodies of bit char-g's, but you can use them if you buy the adapter that comes in the z-car speed upgrade. I like z-cars because they are smaller, with a led light out of the box, but i did order a microsizer from Tiny so, we will have to see how partial i am to them in a few days!