Migrating from another source control to VisualStudio with RTC

Hello,

Appreciate if you could share some experiences with the source control change:-)

I am moving source control of existing solutions with projects from TFS to RTC. Some solutions are nested.

1. Based on the CLM4 information center, we need to remove the following section in .sln files

GlobalSection(ProviderName) = preSolution
....
EndGlobalSection

2. And the following section for .proj files

<SCCProjectName>...</SCCProjectName>
...
<SCCProvider>...</SCCProvider>

Questions:
1) I have to remove the section for all the .sln files?

2) I saw "SAK" as the value of those elements in the .proj files. So I still need to remove that section from all the project files? This applies to all *.csproj files as well?

3) Besides *.suo, *.user, *.ncb and *.aps files, what other files from TFS source control that we should put into the ignore list?

Thanks and Regards