Error 0x80070057 After Deleting Bitlocker Partitions

Question

I'm in the process of configuring OSD through SCCM 2012 R2 U1 and am having issues getting the task sequence to format the drive again after the drive was encrypted with BitLocker.
I've read on multiple sites that Windows is able to install right over a BitLocker'd drive through PE without needing to disable BL through windows first if the partitions are gone. As such, I've setup the following to run in diskpart prior to the Partition
Disk 0 - BIOS step:
select disk 0
select partition 1
delete partition override
select partition 2
delete partition override
exit
This works, however the Partition Disk 0 - BIOS step fails at formatting C: with
Error 0x80070057 The parameter is incorrect. 
It formats the system reserved partition just fine, but leaves the remainder of the drive as "raw" and usually unreadable by diskpart which requires me to boot to gparted to delete the partitions on the drive to do anything with it again.
I've:
verified SCCM boundaries
tried assigning a variable to save the drive letter to
disabled quick format
disabled all Bitlocker steps
disabled the diskpart steps I added
format the drives prior to the task sequence with:
Select Disk 0
Clean
Create Partition Primary Size=350
Active
Format FS=NTFS Label="System Reserved" Quick Override
Assign Letter=S
Create Partition Primary
Format FS=NTFS Label=OS Quick Override
Assign Letter=C
Nothing will get the SCCM task sequence past this. This happens for both Windows 7 and 8.1 task sequences.
What's interesting is, if I load up the Windows 7 media via flash drive and install through that, Windows installs without issue. I've then been able to bitlocker the drive and unencrypt it as expected. Attempting to run the task sequence after this results
in the same error.
My question is, what is different between the default windows installer and the windows install through SCCM when it comes to partitioning the drive and how do I get the SCCM task sequence to match the default Windows install process so this will install?

Answer 1

I've tried with that and numerous other labels and it still fails.
If I've gotten Win7 / 8 installed through the default media, it seems like the drive can be partitioned correctly and working fine. When the "Partition Disk 0 - BIOS" task runs, SCCM doesn't give me the ability to specify the exact diskpart commands; it
sorts that out on its own. The diskpart commands above were my troubleshooting steps. SCCM wipes them away once the Task Sequence runs.
There's something that SCCM doesn't like about drives that have been bitlocker'd and not properly unencryped through the OS prior to wiping the drive. 
Does the default Windows 7/8 media run different diskpart commands during install than SCCM would run for install? One works - the other doesn't.
Below are the settings that are configured for this step - which I believe are default for an auto generated task sequence.