inject with smaller pins, mix with different oils (for example some test prop) and inject slowly.
ive gotten tren cough only 2 times in over 120 tren ace injects... and it was not as bad as people claim it to be for me. just some pain in my throat and sweating profusely for 1-2 minutes. first time was with 100mg, was rather uncomfortable and i felt weird for a couple hours afterwards. second time was with 50mg and it was barely noticeable.
the heartburn is fucking weird though. sometimes its unbearable, especially when im cutting (wont go over 350mg a week while cutting anymore though because of appetite increase). when im bulking im just burping 5x as much or get some slight heartburn at night.
i remember trying to cut on 700mg tren ace a week at maybe 2000 kcals and i literally had to eat more because otherwise i feel like i wouldve died from acid reflux. plus i couldnt do 2000 anyways because of the appetite the stuff gave me