I do not want a scope-type sighting system on this new gun and really like the view thru the fiber-optics that came with it..BUT..the rears will move from side to side somewhat..seems loose to me and afraid that it will affect the windage if not just right... and now on to the elevation aspect..even after loosening the elevation screw to the point of it all but being out, it still shoots high... and it's not me flinching ...that I am sure of...I have shot enough targets to feel comfortable hunting with it this weekend..but I am going to get an after-market "open" site one of these days..what are the best fiber-optics to replace these ? and I did contact Mossberg and the tech there said this was normal...??...maybe so, but they are gonna get replaced..too much invested in all this business to possibly miss a bird on account of "cheap" sights..any better ideas from anyone?