6 to Sm Blk K-Member Conversion

I've searched but can't find the answers.

Are there any drawbacks to running slant 6 to sm blk conversion mounts versus swapping out the k-member? If so, what are they?

I have a sm blk k-member that I was going to use but will probably go QA1 front end eventually so rather than go through the trouble of swapping out the k-member, I may just run the conversion mounts as long as there are no inherent problems when doing so.

Thanks in advance,
Bill