Jasper 6 month checkup

Took Jasper to the dr. and he weighed 18.25 lbs and was 28.5 inches long. He got long an skinny the past 2 months by growing 2 inches and gaining 2 lbs. He is now 93% in height and 57% weight. He is sitting up really well on his own and trying for the past month or so to crawl. All he can manage is getting up on all fours and rocking and going backwards across the floor. He gets so frustrated! He has 2 teeth that have been working their way out for the past month but still coming in slowly so he is a drool machine. He is the best baby with the sweetest disposition!