Look at the examples at the bottom of this page fitsticky.com/texas-method
1: If you're eating well and resting enough between the sets, then just try a different program. TM is pretty much Madcow but with more volume, so that might work better for you.
2: Damn, a lot of small details... this would require a pretty big writeup.
But the wider the grip, the more shoulder transverse flexion and less flexion. Narrower grips mean more flexion less transverse flexion.
Wider grips means less hyperextension at the bottom. Narrower grips means more hyperextension at the bottom.
However, those things are also affected by the height of your arch.
Which muscles are favoured or "worked more" will depend on grip width, height of arch, bar path on both descent and specially ascent, and proportions.
Wider grips means less range of motion. Narrower grips means more range of motion.
Some people find wider grips hurt their shoulders/clavicles. Narrower grips tend to be more comfortable for the majority of people.
This doesn't mean wider grips are snap city, just that they require more "mobility", which is partially genetics (space in the glenohumeral joint) and partially trainable (arch, bar path, shoulder flexibility/mobility work, etc).
Keep in mind that for competition the maximum width allowed is index fingers covering the PL ringmarks on the barbell.
PS: Note I'm using "wider" and "narrower", not "wide" and "narrow".
3: Might just be impression. Post pic?
Find another gym or make a homegym.
I highly doubt the only gym in his city is PF.
>I am running a PPL split
99% sure that's your problem.
What program are you doing?
Post your whole program.
Lean back. Split position with the feet can also help.
Read the "Routine tips" section on fitsticky.com/novice-programs