I am actually still running the Test-E500.
In week 14 now.
Look back over my posts to see my week by week experience with it.
In summary, my biggest advice is that it is ONLY for very advanced and experienced users.
Start with 1/2 cc and see how you feel.
I started with 1 full cc and it was some rough first few weeks.
ROUGH at first -- as in if you are new or do not understand PIP, you will have to tap out. Also, I had some test-flu (but maqybe not even related, no way to tell, but no big deal).
This was diluted in 3cc total pin (with deca and mast).
Over the course of a few weeks, I did get used to it and was not much of an issue.
Half way through (around week 8) I upper my dosages as I like to do to stay ahead of myostatin and SHBG etc.
At that point my pins went to 4x a week with 1/2cc Test500 in a 2cc total pin (1/2 E500, 1/2 cyp250, 1/2 deca300, 1/2mast-mixM).
ZERO PIP in this scenario.
I would expect diluting with typical dosage oils to reduce PIP drastically;
However, pairing with another high concentration product (I predict, I have not tried tho) would be some rough PIP.
Ok, that is a lot of detail and I hope it helps.
If you want more detail please search the thread for my Test-500 experiences -- I do not try to make anything look good or push anything (I am 100% open and say if I did not feel good) -- I posted after each pin for the first few weeks.
Read it! and take my advice
you'll thank me later lol
best wishes