Hey BT
Henru has pretty much answered it all,
I’m new here so my input may be taken with a pinch of salt, but here we go anyways
1. Don’t use letro straight away. It’s like stubbing your toe and then using morphine for the pain. Way overkill. Look into other AI’s like Arimidex. You could also look at running some proviron on cycle (binds to SHBG strongly, and has anti estrogenic properties). Furthermore letro will make you feel like absolute death (dosage dependent though).
2. Glutes - I prefer 23g 1 1/4 inch... Delts 26g 13mm or you could use a slin needle and backload it if you don’t mind refilling etc
3. HCG is sub-q injection... as Henru said, around the naval area (my new favorite for these shots is actually into the skin by the love handles). Also a good idea to run it on cycle (keeps the “fellas” functioning)
4. Aim to keep blood levels constant with the dbol... best to try split the dosage of one tablet every 3 to 5 hours (assuming they are 10mg tabs). If I remember correctly that is the half life of dbol but I could be off slightly.
5. Signs of gyno, best to watch this closely and take action before it worsens... so if you feel sensitivity in your nipples etc. Dbol is 17aa so it is liver toxic, best to run your liver support (Liv-52 etc) and also keep your water intake high.
As Henru mentioned, your body fat is quite high for this type of cycle, so might be wise to reconsider the dbol
Good luck!!