What are your feelings on R1/Tight bends?

Just curious as to what those with experience of putting together different track layouts have experienced with R1 bends/hairpins/chicanes?

As a severe Motorsport enthusiast I am mocking up layouts and very quick to throw one r1 combination bend somewhere in each layout I come up with if nothing elsefor variety and a different type of challenge.

I am worried with slot cars it may not be so much of a good idea?

Do they ruin the fluid tempo of a track with deslots or do you like having them there?

I am leaning towards trying them out but its an expensive gamble to blow money on them if thy are gonna cause hassle?

any thoughts welcome