Top all phenos of purple wreck or youll end up with some beasts. i had a mutant come out with double set of cotyledons, it was real slow to veg and i still topped it and sure enough it doubled in size in flower. untopped would be a waste of indoor space as would not culling some big fans leaves. unless your growing from clones, the clones need no topping and do well in SOG with little veg time. Best pheno is similar to grandaddy with real dense nugs but much more grapey flavor. Other phenos are completely white at harvest time but yield poorly. Out of 12 fem beans all smelled like purple dank
even if only 50% actually showed purple which imo taste is much more important. good luck