Clik now...shear around September

As the title suggests what are peoples thoughts on applying clik to ewes now and waiting till end August or September to shear, any pros or cons. Was thinking of trying it..few reasons have small numbers and can be hard get a shearer if left later in the year might be easier get someone...clik on the ewes might protect or help protect the lambs as well over the summer...later shearing would mean less wool around mating and lambing next spring...when very woolly around lambing harder for lambs find the teats, harder see ewes bagging up....any thoughts