game_snd.bnk and Sample editor, quick questions:

Why do some sounds have 3 variations? For example,

Stots:

17 TC_gear down_int_1
18 TC_gear down_int_2
19 TC_gear down_int_3

have all a slightly different sound but in general sound the same.

If I want to change those 'gear down' sounds to my own sounds, can I put a different sound on each slot, or do I need to use the same sound for each slot?

And why do they repeat on slot 93, 94 and 95? Can I use the same sounds I use for slots 17, 18 and 19?

Hope it makes sense!

Thanks