I don’t think fueling is a concern. If it were, I would expect the head ported setup on Jonnys car to cause problems first.
The HPFP we created is extremely large and the injectors are the largest Continental DI injectors in the VAG line up, as far as I remember. They are not like the older RS4 hitachi units (Similar to bosch HDEV 1). These are new multi 6 port injectors, similar to bosch HDEV 5. Basically, the old stuff sprayed from one hole. These have 6 holes. They also run at higher rail pressure than the RS4 so we can inject more fuel in a shorter period of time.
HPFP internals. : )
http://www.goapr.com/includes/img/products/hpfp_25tfsi_internals.jpg