When I upgraded my BBS02 to a HD, I actually remembered to save the default HD settings. Here's what I have.
Level %C %S
0 0 0
1 50 44
2 55 51
3 60 58
4 65 65
5 75 72
6 80 79
7 85 86
8 90 93
9 100 100
Of course I don't use these values, I use my own customized values. Hope this helps.
NOTE>> I see the spaces I used to make a neater table were discarded by the forum's software. But it still should be usable.