Please clarify - budget driveline improvements on au I6

[BLSTIC]

During my research into boosting my AU I have come across a few interesting bits and pieces. Some will be rumours, others true. Kinda need help separating the wheat from the chaff.

Gearbox:

S5 solenoid: Apparently adjustable in the AU's. Was definately not in my EFII. How is it adjusted and does it have the same effect as intercepting the electronic signal to the S5 solenoid (which I have done in the EFII)?

S3 & S4 solenoids: Listed as shift improvement solenoids (or words to that effect). Rumour has it that disconnecting and emulating these (with resistors) can extend transmission life and reduce slip under the harsh boosted conditions I desire. Can anyone tell me if and why??

Engine:

Conrods:

Rumour has it that the AU and BA rods share the same length and bearing/gudgeon pin sizes, meaning that I can use BA rods in my AU engine.

Confusingly there are 3 different types of rods. Standard rods, turbo rods, and LPG/Typhoon rods. The grouping is strange, but ford press releases did state that the LPG motor has beefed up rods, and FPV releases stated that the 270kw typhoon motors had manlier conrods than the standard XR6t items. The stock, typhoon, and LPG rods appear to be all of similar pricing too...

Pistons:

Apparently AU-BA pistons are interchangeable. I'm having issues believing this, but if true it opens up a whole new avenue of lowering compression for boost. XR6t pistons here I come...

Incedentally, who makes low compression pistons to suit the AU?

Valvetrain:

AU and E-series cams are interchangeable, but only if the rockers and lifters are changed too. How true is this? I find more E-Series cam profiles are available, but there must be a reason ford went to the trouble of changing the system.

Other stuff:

XR6t injectors: Same as standard BA, but run with higher fuel pressure?

Manifold Pressure and Temp sensors: Voltage outputting MAP sensor for ALL AU's? BA sensor direct swap, but 2-Bar scale as opposed to 1-bar?

"Boost Cut": E-Series is 10psi, beyond doubt. Does the AU have one, or does the computer just play dumb and inject enough fuel for WOT throttle without boost?

Also, how hard can these AU engines be revved? They are a lot smoother than the E-series, and have longer rods and lighter pistons, but have the same marked redline. Is the redline there because things will explode above that, or just because higher revs would mean using a wilder cam less suited to the low-rpm range most cars get used in?

Can anyone confirm or deny the above rumours? Every single one of these affects the choices I take along my path to boosted glory.

Thanks
Ben