I've been mulling a big parts order from motobins to build a new engine from a short block that I have, but I'm a little hesitant though as some of their prices seem a little too good to be true and I've seen mention that their short 1st and high 5th gears are a bit second rate quality-wise. Is motobins selling seconds or reject parts? They sell the siebenrock cylinder kits, but they aren't siebenrock branded (even though they're obviously from siebenrock) - almost like they didn't meet siebenrock spec and they're just getting unloaded through motobins? Does anybody have any solid info on why motobins is so cheap? Are they selling seconds?