Normally suspension hurts much worse b/c it is not dissolved in oil, merely suspended in a water base... usually needs to be shot at least ED if not 2x a day through a large-bore needle. It does work better though, no ester weight at all, pure test. However, if you can find TNE in oil, that's the best of both worlds. I made some recently and at 50mg/ml in oil, test base is painless... can't wait to try it out in a future cycle!