they are about an inch and a half now, and the first true leaves are three times what the cotyledons were. is it time yet? theyre in one inch jiffy pot sprouters, so i dont think they can get THAT big, right?
If they are in juffy sprouters then you can let the roots begin to poke out of the sides of the jiffy's and then transplant the whole thing into your pot.
If the roots cannot penetrate through the outer layer then you are also gonna get transplant shock as they are going to have be dug out of the starters and planted back into another pot.
Try and use something like either 1x1 rockwool cubes or some small jiffy pellets that allow the roots to grow out of the sides and then that way you only have to plant the pellet into your new medium and hey presto no transplant shock.