Oil TNE is boring. I assure you I've got suspension(water) dosed @75mg/ml and I only use a 29 gauge slin pin.
I shake the bottle vigorously and draw immediately with a 20gauge pin into a 3cc barrel. I back load the slin pin and hit immediately.
You're aware that TNE and suspension is the same thing? Testosterone No Ester = Testosterone Suspension. Water isn't an ester. The testosterone is "suspended" in the water. That's why you have to shake it before drawing and whacking. TNE in oil is what you see these days more than water because of the issues with water...mainly the chance of infection and the length of time it can/should be stored.
Here's a tip...when you put your suspension away, lay it on it's side.
Test suspension will flow through a 29gauge pin because these days micronized test for suspension can be had from the manufacturer. If not to do so would be an extremely time consuming process.
Winny in oil is around these daya as well.