Regaine - am I using too much?

[thinkingaboutit]

This may sound a silly question. I am trying to find the Norwood Scale that I fit into, and I don't exactly fit into any. Based on the image below, I would say I am a "VI", although I did not have any hair at the front at all, and extremely thinning hair at the back, so between "VI" and "6" if that exists. This was before FUE.

Anyway, to cut a long story short I had FUE done about a year ago, and to help give it a boost, I started using Rogaine, which I believe is helping a little bit. Very hard to measure success on these things like this. On the Regaine pamphlets it says to use 1ml twice a days, or 5 squirts.

This is a paste from their paperwork:

"Apply 1ml of the solution twice a day, once in the morning and once in the evening about 30 minutes before going to bed. Massage the solution into the affected areas of scalp gently. You must leave about 12 hours between applications."

However, because I am applying Regaine to a large area, I end of needing 7 or 8 squirts. Is this a big issue? I sense from the Regaine pamphlet that they advise against using more than 1mg or 5 squirts. Am I making a big mistake or am I worrying over nothing?

By the way, I am using Regaine Extra Strength.

Can anyone give me any advice on this please?