Can the range of a group spell be personal? I am designing a group Leap of Homecoming spell, and am trying to keep the level down, so want a range personal target group version. Is that possible? I know it puts lots of restrictions on the groups the Magus may take with him, but is it OK other than that?
I am not sure I understand what you are trying to do.
A spell with Range:Personal affects the Magus and the Magus alone, so the Target can normally not be larger than Individual. (ArM5 p111)
Edit:
There is at least one exception to this: If you been initiated into the Sensory Magic mystery you can use certain Personal range spells against people who can sense you. (HoH:MC p27-29)
I mean if the magus were under some sort of magical effect that made them a collective there might be an exception... duplicate bodies of the busy magus?
In our saga we used an enchanted device for this: R: Touch, T: Ind and a few uses per day. This is in general easier than T: Group.
It requires several applications to transport a group and hence some time, but it also cannot botch.
If you want to transport entire groups via Leap of Homecoming it might be worth noting that, while a R:Per T:Group version (at +2 magnitudes) is not feasible, a R:Touch T:Circle version (at just +1 magnitude!) certainly is.