problem with 29g pins is you have to run low dose cycles or pin very often which many people don't want to do, myself included. The moment you add a second or third compound the harder it gets
True. If you use short esters and pin daily you can get away with it though. And pinning daily with slin pins is easier for me than harpooning myself 2-3 times per week.
Like daily
0.3 ml Tren A 150 mg/ml = 315 mg per week
0.4 ml Test P 110 mg/ml = 308 mg per week
You would have 0.5 ml left for a third compound or a higher dose since you can get about 1.2 ml into a slin pin.