Please post about your emitter swap when you do it, I think a lot of others would be interested as well.
This thread has a lot of info about it. Firelight2 has tried about 5 or 6 different emitters in his S10, (Supposedly the S10 has the same internals)
I guess for these lights an emitter swap may not always be the answer, reading about people putting in T6 NW and tint is still too yellowish, something about the driver? Although one member here in that thread (Hrvoje) did a swap to T6-4C and says it’s now his favorite EDC.