Hooper,
The only "trick" I can think of is that you want to avoid any bubbles when you set the transducer into its mount. A suggestion is that you put some coupleing gel on the tranducer as well as in the mounting collar. You want to be cautious to set the xducer in so no bubbles form. Try to get some ultrasound gel from your local hospital, if you know somebody. They should have plenty in the cardiology or obstetrics(babies) testing labs. Good luck.
