I've tried many different TD pins and I've decided these are the best out there. I've used them on my last three builds.
https://www.strikeindustries.com/shop/products/red-line/si-ar-ul-eptp.html
Good to know I’ve been eyeballing those for a bit in a bid to shave another few fractions of an ounce (grams add up to ounces, ounces add up to pounds. Mixing metric and imperial leads to crashed mars probes).
To the OP...what’s wrong? Maybe I haven’t tried enough uppers or I’ve jist had a lot of luck. All of my lowers and uppers I can push both pins out by hand without needing a bullet or tools. The front can be hard to remove if I unhinge the rear first, but easy if I either don’t or can rest the gun in my lap to take out the pin (and take the stress off the pin while unhinging).
You want to see hard, try a GWACS CAV-15 lower the first few times. Maybe you could do it with a bullet, I haven’t tried. I’ve had to use a punch AND a hammer the first few times to get the rear started. The polymer lower wears in over time so it can be removed with a bullet at least.