Since you are skipping the paragone for 5 days, you can do the bitters in the morning and the GCG at night. But you better reread the instructions.
Next time you can try chanca piedra, that you can use for 4-6 weeks in a row and then skip a week. http://www.ashaninka.com
I thought normally you do the chinese bitters for awhile and then you switch to the GCG, but later I read that you can do it in one day like I mentioned.