He's looking really good! The positive changes in that leg are fantastic, I had to go back and look at his little guy pics to compare, wow!
He looks like he's going to be one sturdy guy. I really like the angle of his shoulder, his back to underline ratio is nice, and he has solid legs with great pastern length/angle. I LOVE his head, kind eye, refined muzzle and love his ears.
I agree with robs, I've no doubt he will carry you just fine...and all the gear you could possibly want to strap on him :)
Life is like a camera. Focus on what's important, Capture the good times, Develop from the negatives and if things don't work out, Take another shot.