Substitution Question

[rsl]

The rules state that any sub can shoot a technical. To shoot the technical, they would have to to sub before the first shot.

This kind of implies a sub could happen at any time, I think. See section 8-3:

8-3
The free throws awarded because of a technical foul may be attempted by any
player of the offended team, including an eligible substitute or designated starter.
The coach or captain shall designate the free thrower(s).

Just out of curiosity, could you sub between the first and second shot and have different guys shoot the two shots? I don't think this is prohibited by rule, is it?