I started on bi mix thru the strengths and was almost there, but not what I wanted either, then went to tri mix 30-1-10 started 15 units and went up to 25 which last for 2 hrs. One hr super boner and 1 hr semi but can be coersed into it if I want, did 26 units another time and super boner for 2 hrs then semi for about 1/2 hr, whew. So I treated the new strength like i was starting over, but you do what your comfortable doing, it's different with every individual and there sircumstances. Not sure I spelled it rt, lol. I always hold my thumb on injection site and 2 fingers on other side and compress moderately for a couple of minutes and never had a big issue unless hit vein or not compressing. Had a few 1/8 " spots at site, no biggy gone in couple of days. Go slow and GL.
I'm 64 yrs young, heart stent 10 yrs ago, mod. high sugar, HBP, married 45 yrs, retired. Heart attack, 2 strokes. No damage, except start of Ed, Ugh! Live in Ada Michigan. 8/8/19 started injections, now tri mix 30/2/20.