A Couple Of Questions About Flashing (w880)

OK, so I successfully (I think) debranded (from T-Mobile-ness) my phone yesterday. I used the XS++ tool and used the following files:

W880_R8BA024_MAIN_GENERIC_AI_RED52
W880_R8BA024_FS_BALTIC_RED52

These were recommended to another user on another forum when he asked about this issue. I also used the Generic_UK custpack that was already in XS++.

Also after I flashed my phone I noticed XS++ reported: "Warning: IMEI name does not match GDFS name (IMEI:NULL GDFS:W880)", but after looking at the logs this was also reported before I flashed my phone, so I'm going to assume this isn't an issue. I'm sure I'll be correct if it is.

These are my queries:

1) "Baltic" seems like an odd FS to use, should I have used one of the europe ones? If so, which (europe_1, _2, _3, _4, _5)?
2) Should I have used a different custpack? I wasn't sure about this so I guess (which I suppose with something like this might be a tad stupid) and went with Generic_UK, as I live in the UK.

Like I say, my phone works - and is debranded, I just wondered if there were any "better" settings to use?

Thank you