10 Year ILR having 2.5 years T1E 50k

[Mikal82]

Hi
I am applying for 10 year ILR in Oct16 and currently i am on 50k Tier 1 E.Plz need advice from some senior members or the ones who hav been to premium service for 10 year ILR on Tier 1 E .

1.What docs do i need to submitt,do i need to submitt any business related docs??
2. Is HO doing any interviews abt T1E at 10 year ILR premium service and if so wat type of questions thy r asking???
3.If anybuddy has faced such experience please share it as it would help alot for all the cases like us.

I hope sombuddy would definatly reply and it would help us alot and would be appreciated.

Many many thanks in advance.