Like you, I love my disco but I have the same complaint about the stock...... it's just to small for me. I wish I could just get the new Katana stock but that's not an option. As for the choked barrel,, I really missed that when I first looked at the Katana specs. I'm really looking forward to your review,,, I have a feeling I may be hittin that button soon :) ,, Christmas is coming,, I could always ask my wife for a new Katana as my present :)
Jeff