Pack film hasn't been around since the 90s :\
The film in them was on a much thinner base than roll/sheet film.
I shoot exclusively with Fomapan 100 in 4x5 (mainly for the price)
I develop it in HC-110, B, 5:30m at 20C with good results.
And I also use it in 135 and 120 formats for most things.