I'm fortunate to have a set of sid's from the bike I've just sold but they're longer travel. Reba's are 100 and SIDS 120.
Measurements give a change in head angle from 70 to 69 and height to stem top (at steerer) go from 995 to 1007 after a spacer shuffle. Seat angle changes from 74 to 73 too.
Before

After

What's verdict, looks like it'll Be alright to me. Just depends how it climbs!
*edit, photos mended