Can SMP before a hair transplant make the procedure more difficult?

I wanted to know that if we do SMP before transplant how doctors doing transplant wont find it difficult to transplant hair on bald patches as it is camouflaged because of SMP. Keeping gaps between transplanted hairs. I had transplant earlier few years back, going through it again for correction, if I do SMP on the gaps and the back area, wont the doctors find it difficult to extract the hair and place it in SMP area