[Q] Some questions regarding upgrading to prerooted LP (Australia) topic

Hi,

I have a rooted SGP521 (4G) purchased in Australia. It is unlocked and rooted 4.4.2 (17.1.1.A.0.402).

1. Do I need to flash dual boot recovery BEFORE upgrading?
2. To upgrade to LP do I need to flash 690 first and then 726?
3. If need to flash 690 first, which pre-rooted file is most suited?
http://forum.xda-developers.com/xper...ua-kz-t3075649
OR
http://forum.xda-developers.com/xper...neric-t3057294

Thanks a bunch!

xda-developers