1) Wear, yes, but how many shots? Wear like shown may be this way for the life of the strings and never hurt a thing.
2) How old? The strings themselves look good. The ones on my Shadowcat were original, just reserved, and were on the bow when I sold it - 15,000 shots or so. ??? A solid 12 months of shooting.
3) Hutch noted reserving. DIY or having it reserved is far cheaper than a new set strings or at least should be. Halo is the way to go. I switched serving material and lost about 3 fps.
4) Nice loops ends! My Hammerheads looked like crap compared to yours.