Making a 4-day/week HST routine

[Huntax]

I was thinking on doing a push/pull progam based on HST principles. It would go like this:

Push:

Box squat
Bench
Military press
CGBP
Incline db press
Dips
Pec dec
Shoulder db press
Side raise
Overhead tricep db extension
Cable tricep extension

Pull:
Sumo deads
Leg curl
1 arm db row
Pull ins
Standing db curl
T bat row
Pull up
Cable lat pullover
Preacher curl
Hammer curl
Face pull
Reverse pec dec
Shrug

Monday push, Tuesday pull, Wednesday push, Thursday pull.

This would be done in this manner for all exercises:

Block 1: 2x15

Block 2: 2x10

Block 3: 2x5

Block 4: 2x5 negatives if possible


I would increase 10 pounds in sumos and squat from workout to workout and 5 pounds in all other exercises


My questions are: Would this work as good as the original 3-day/week version?

Is there too much volume or anything that I could change to make the program better?


Thanks