tall and skinny

I took Tripp for his 5 year well check up this past week. As always, he is as healthy as a horse and I'm so thankful. He is suffering from his seasonal allergy type stuff (he's just like his daddy), but other than that, he's doing great. His stats:
Height: 46 3/4 inches (almost 4 feet tall!!!)- 97%
Weight: 44.5 pounds- 50%

The doctor said that if he continues to grow at the same rate he has been growing, he will "top out" around 6'3". Tall like his Poppa and Uncle!