That'll work excellently and it matches the blue I have made with CuCl2 - But the burning properties are better than mine since I rarely ever used hexamine (I used dextrin, PVC and shellac)! It seems like the hexamine is a bit high but perhaps the paper you lit it on is producing the orange tip in that video.
Good luck with your future devices.
This is my Cucl2 star test:
Do you think it's ok?.Thank you!