Welcome back to the forum. I scanned your prolonged (2 month) discussion with Dr. Hook from a few months ago. You really got your money's worth! It was clear then, and remains clear now, that you are obsessed with STD risk, especially herpes. There is no need; your concerns have no realistic basis.
An overnight scabbed lesion cannot be herpes. HSV lesions cannot take less than a week to progress from red bump to blister to open sore to scab to healing, and usually it's 10-12 days. As you learned from Dr. Hook, it is highly likely your positive HSV-1 blood test result reflects a distant past oral infection, and has nothing to do with the oral sex event that started your mind spinning a few months ago.
To the specific questions:
1) For the reasons above, I very much doubt your penile scabs were herpes.
2) You can't get genital HSV-2 from oral sex (or at least too rarely to worry about). And yes the 5 month test result is definitive; having HSV-1 does not alter the time to positive HSV-2 test results.
3) Of course penile sores or cuts can result from masturbation, if the contact was sufficiently vigorous. You're a better judge of that possibility than I can be.
Let's consider the worst case scenario, that you indeed have genital HSV-1. I doubt it, but I cannot rule it out. The blood test says nothing about when or where on your body your HSV-1 infection is located, so it's possible -- if not from the recent oral sex event, perhaps one sometime in the past. You're never going to know for sure, and you'll just have to face that fact. But let's say you did. What would it matter? The recurrence rate for genital HSV-1 is low (almost half of all infected persons never have a recurrence), and asymptomatic viral shedding is uncommon. Both of these factors are very different than for HSV-2. The bottom line is that genital herpes due to HSV-1 usually is a trivial problem that is rarely transmitted to sex partners. So if you have it, what's the big deal?
I stress that I do not believe you have genital herpes due to either HSV-1 or 2. But the fact is you are seriously overreacting to both a low probability and to a condition that shouldn't be nearly as big a deal as you are making it.
Here are 2 other threads that go into the details of genital herpes due to HSV-1.
http://www.medhelp.org/posts/STDs/Recently-diagnosed-with-Genital-Herpes-HSV1/show/969931
http://www.medhelp.org/posts/STDs/HSV-1--devastated/show/1159077
Let me know if you have a brief follow-up comment or question, but there won't be the prolonged discussion like last fall. Really, mellow out. This business simply isn't worth the time and emotional energy you have devoted to it.
Regards-- HHH, MD