General

That would FOR SURE be a noticeable gain, especially at your height

I’m a few inches taller and I can tell you YES there is a noticeable difference!

Sounds like you will have to gain more to find out when you feel the difference

For me there was definitely a difference. I went from 170s/180s to 250s and transformed from a thin fit guy to an obese flabby one, as you can see in my pics... and Im 6'1".