I mean, I wrestled & played football all throughout school. From 7th Grade to College. Then I decided to become an MMA fighter for 4 years (that went no where). Currently, while on a very minimal workout schedule I can bench 395lbs. I've been an athlete all my life, but alot of it has to do with just genetics as well.
Like, what do you call those crossfit things when somebody does a pull up, but they go all the way to the top of it and do a dip? I got that on my first try as well...don't think I've ever done em since.
Not BSing, I'm a regular on the MA/Fitness board. Been posting videos for years of me lifting and fighting and stuff. Something that most people can do that I can not is whistle and snap my fingers. I'm pretty sure thats genetics as well.
I still don't believe it, no offense. I've never heard of anybody doing a one armed pull up without specifically training for it, even genetically gifted lifters or fighters.
Then there's @Shablagoo who says he can do it even though he doesn't work out.