I would say i was more nervous sending my first student for GFT.
By the time you send the first solo up yourself you should have prepared and handed over 4-5 students to the CFI for solo check before getting your restriction removed. And if you have to be nervous about the student going up they shouldn't be solo.
I was involved in 16-17 students ppl's so hence my big paint brush. In fact my second student (from start to finish) now has my old job. Which after talking about it in the pub last night I feel quite chuffed about.
MJ