What is your preferred dosing of IV ganciclovir for CMV disease in immunocompromised patients?

For treatment, I usually start with 5 mg/kg IV q 12 hr, and the dose is adjusted for renal function with the help of ID pharmacists. I can consider going to 7.5 mg/kg if there is a concern for very severe disease or low-level resistance, but to be honest, I don't think I've ever done that, given the...