700r4 part throttle shift points

[DRobb's_85]

At what general speed and rpm do your 700r4s make their shifts? Say, leaving a stop sign or light just keeping up with traffic not flooring it or anything. I ask this because sometimes I feel mine shifts a bit too early, but only during part throttle, not wot. It usually shifts from 1-2 around 8-10 mph at around 1800 rpms or so. And before you ask yes the tv cable is correctly adjusted. This is in an 85 k10 with 4.11's and 33's. Thanks