What models are you having issues with? You really can't just say "Don't buy ANY leopold because my one mystery model number board had issues". I know of FC200, FC300, FC500, FC700, and several more just came out, or are about to be released. I've used the FC700R and it was better than any Filco or QFR that I used, but I sold it because of the stupid spacebar stabilizer spacing and incompatibility with after market sets. Really I just didn't want to mod every spacebar for every custom set I ordered, and everything else is good enough.