so i went to the gym this morning with my gf to help coach her (I do that for her about 2x's a week) and on some exercises she doesn't need me. Today is a rest day for me so I had no plan to work out but her exercise was gonna take a little bit of time and so I wandered around the weight machines (I use free weights for nearly everything except leg curls & leg extentions).
So I go to the shoulder press machine and my gf had just been on it a few minutes prior but I thought I'd give it a go since it wasn't in use. The weight plates are set for each arm (idk why) so I set them at 50lbs each and do one rep, whoa, that was a bit easy, so I up'd it to 70 lbs each (140 total) and it was challenging but not my max. I set the plate weights to 100 lbs each (200 total) and did 8 reps. It was hard but man was I impressed with myself.
So this is why I don't like machine weights, it seems like lying to myself, I could NOT press 200 lbs of barbell above my head 8 reps.