What do you guys think about training the same muscle group twice a week

Abs 6 days/W

Mon/Thurs CHEST/BI/TRI
Chest
5 sets Flat bench start low to max
4 sets Peck flys
4 sets Flat Bench dumbell chest press

Bi
4 sets preacher curl
4 sets biecep cable curls

Tri
4 sets tricep pulldown
4 sets upright row
4 sets DUmbell tricep raises

=33 sets

Tuesday/Thurs BACK/REAR DELT/LAT/SHOULDERS

SHOULDERS
X4 DUMBELL SHRUGS
X4 DUMBEELL SHOULDER RAISES
X4 BENT OVER ROWS

LATS
X4 LAT PULL DOWN
X4 LEFTO TO RIGHT LAT DELT RAISES
X4 ROWING MACHINE

BACK
X4 BACK MACHINE
X4 T ROW
X4 HEAVES
=36 SETS

Wed/Rest
Legs
4 sets squats
4 sets Calf raises
4 sets Leg press

=12 sets

I am still working on what exersizes are the best for each body part, so I am still mixing it around abit. Can anyone give us any Ideas? Cheers