RE: Set up for addin charge with smartprobes
As Jason pointed out I am currently using Yellow jacket ball valve equipped hoses and Appion CTEE14 MegaSeal Low-Loss Charging T-Fittings. I usually have the Schrader core out of the high side to aid in system dependent recovery. The core remains in the low side to meter refrigerant so as not to flood the suction line with liquid.
The tees can double as 90° adapters as well.