Sub q works fine. Currently I do it some days and other days Im, soni don't have to pin again for at least a couple days. I've done many many 8-12 weeks trt s sub q since 2017. It does lessen higher estrogen spike than Im.
Oil really doesn't bother me anymore and haven't gotten pumps in a while. It's a technique in to ok now how far as to me out it in.
I wouldn't do a cycle sub q obviously. If I ever used tren again I'd do sub q like 10 mgs five days a week or something similar. Dante did tren sub q low dose with noticable results.