Hi B D, not being flippant with you but if skin system hairlines were `that`visible, no-one would wear them...... any hairline-- irrespective of base-material --can become visible if you wear an exposed style...atmospheric dust can lodge there against the tiny bit of adhesive material which may be not quite covered, or on skin-oils .......usually a wipe with a cotton swab moistened with alcohol will remove dirt and you may then have to do a little `touch-up`with some glue. Poly itself is hard-wearing and easy to clean too.... the newer `thin`skins may be less durable .... much like the trade-off between French lace [`heavier] and Swiss lace [`lighter`] ..... glad to read you`re getting quite comfortable now with your regime....I really do admire you guys who go the DIY route, without ever having been to Salons/ hair-clubs , where you generally need to put up the deeds of your home to pay the fees !! The very notion of wearing is a huge psychological step for most people , so, once the decision is made, to choose to `go it alone`(apart from the cut-in) is so brave of the individual... I had the experience of a few years of going to various salons.... with good ,bad and indifferent results..but ALL had one thing in common....mega-bucks !! This wearing game is still like an unharvested field for many companies---ripe with `innocents` who can be easily parted from the contents of their wallets.... don`t be fooled by all the hype and `spin`...... I have no issue with anyone making a decent living out of supplying hair ..I`m sure the money is well-earned with the amount of behind-the-scenes work there is in dealing with all types of enquiries, issues, shipments etc., so no, I don`t begrudge anyone their livelihood, but when people can afford 4 holidays a year to the Caribbean, lying sipping Malibu in their hammock slung between two coconut trees, from the proceeds of charging 4-figure sums for a system which should cost 10% of that---- well, then.....hmmmmmm.
Happy wearing to you all.!