Hello everybody my name is Dion. Long time lurker first time poster. I have converted 2 saigas now but this is the first time I have used a magwell. Can somebody point me in the direction of how to modify the sgm mags for the j&e magwell? All I have seen is basic picture that is supposed to come with the magwell. But it looks like the front and rear lugs and the side "stripes" need to be ground off is that true? If so how much?