I'm looking to replace the factory sights on my Springfield XDm 9mm but don't know which brand to go with. Im 22 but have really poor vision so a bigger more luminescent sight would really help me out especially if something goes bump in the night and I don't have my glasses. I really like the idea of the XS big dot and since I probably will never shoot at anything past 25yrds in anything other than a range setting their long range accuracy isn't too much of an issue. I've searched the TFO's before but heard of some quality issues and the only problems I've heard with the XS sights are people not being able to get long distance shots as easily. Any one have any experience or insight with these sight sets?