I got do boarding service.

For neutering both are also ok. You dont really needs consultations or medicine.

Yeoh and Jenny both neutered by gliders in the past. In the past Dr. Yeoh were the only surgeon using gas anestatic, so he was recommended as gas cause less complications compared to needle anesthetics. Now Dr. Jenny also uses  gas anesthetic. So both are ok in my opinions for neutering.

Dr. Yeoh's procedure will remove the ball sack entirely, which gives a prettier smoother look in my opinion. Dr. Jenny will just potong inside and wont remove ball sack, which gives natural look. She also charge a bit cheaper for the procedure so the choice is yours.