Hello to all. Been lurking for a while, gathering lots of good info and just finished converting my S20. Haven't shot but about 50 rounds, mixed slugs, buck and birdshot. Gas system seems to be ok, cycled federal low brass ok but not Winchester with the stock 5 round mag on setting 2. High brass worked well on setting 1. Had major feeding issues with the plastic 10 rnd mag. Lots of FTE w that mag and several nose dives when feeding into chamber deforming the shell. Looking for any input you guys might have. Attached a pic of my 20 with partner Saiga 5.45. Thanks.