[HELP] return to stock

So I've been running rooted stock for a while and decided to try out blisspop. After a few days I decided to return to stock, partly because I read about the 3.1.1 update coming out. I downloaded the 3.1 full OTA, flashed it with TWRP and all was fine. Things started to get wonky when I got home the other night and decided to update the controller( I hadn't done it after the 3.1 update rolled out). The controller wouldn't update and the tablet kept freezing up. Then the download for the 3.1.1 update showed up and of course I didn't flash it because I wasn't stock. Then I started getting google play services errors and I couldn't do a thing so I did a factory reset. During the setup process it keeps freezing up during 'Checking connection'. I can forget the network, go through the setup and get to the home screen but then I have no icons. I can restart the tablet and the the default icons appear where I can then connect to my wifi network but I can't add a google account(keep getting google services errors). The weird things is this even happens when I reboot to bootloader and

fastboot erase system
fastboot erase userdata
fastboot erase boot
fastboot erase recovery
fastboot erase cache

and then

fastboot flash recovery {dir}/recovery.img
fastboot flash boot {dir}/boot.img
fastboot flash system {dir}/system.img
fastboot flash userdata {dir}/userdata.img
fastboot flash staging {dir}/blob
fastboot flash dtb {dir}/tegra124-tn8-p1761-1270-a04-e-battery.dtb

This is of course after downloading the recovery image(3.1 found here http://forum.xda-developers.com/shie...uides-t2988881) and verifying the md5 so I know everything is good. The really wierd thing is, I have none of these problems if I get back into the bootloader, flash TWRP, reboot into recovery and then flash bliss, gapps, and reboot.

Does this make sense to anyone?

Any help would be appreciated
Thanks