If the stock front area is no good for you, then you should make a template to the desired shape /contour, and order custom.........soaking the knots in conditioner is usually successful..the knots swell and it can then be easier to pluck out the hair ....you need to wet the knots, and apply conditioner liberally ...leave it to `work` for, say, half an hour or so..... no matter what method, you can end up with an ` uneven`-looking system.....it can be ` patchy` ....only apply Nair in small ` dots` and try to spread them evenly.... you can end up with areas where there are clumps of hair, and others which look ` bald` ..the best way is to go slowly, over a few days....
The knots will be removed along with the hair ....there shouldn`t be a visibility issue as such ...be aware that the factory often uses fabric-dye to color the hair, so bleach will not be effective....you could try a fabric-dye remover on the knots first, as this would be less harsh than bleach....try it on a small / test area and see if it works.