NCSUallterrain

Looking to level my 2014 CC Sierra all terrain. Definitely gonna go with a bottom strut spacer and was leaning towards a 2" from motofab. I saw that motofab actually offers a 2.5" bottom strut spacer kit. I haven't been able to find any information from anyone who has one, as most with a 2.5 have a combination top/bottom. This makes me concerned that maybe 2.5" is too much to put only on the bottom of the strut. Can anyone offer any insight on this??