Your dose of Modafinil is too low IMO. Try 400 mg. Or try 400 mg of Armodafinil. Just don't expect to do that every day. You will need drug "vacations" because of the havoc those drugs will cause to your sleep architecture.
BTW Try sugar free Red Bull or Coffee and a tyrosine supp plus aspirin instead of the Monster-- much healthier.
Its exactly what I encountered , took me a while to see your post.
I have been prescribed what my apnea doctor says is the max dose in Japan at 300mg a day ... Only 400mg works for me and at least 250mg of caffeine. I tried 350 a few times and 400 is the only effective dose (I have even fallen asleep on that).
I know about the caffeine aspirin since the ECA stack ... tomorrow is MCA stack day , a very good idea , I wonder whether the aspirin and caffeine may potentiate Modafinil some also.
Thanks Junk Master !!!