For the monsters, I suggest-
-1 Shogun Shien (I really don't know whats so bad about him, I just know that since Synchros came out people dont run him, which is OK, Sams still win, so, ya know...)
-1 Kageki (2 is enough, hes good, but one of the main difficulties in making Six Sams is that the main deck gets very clogged)
and +1 Yaichi (He's OK, not great, not bad, so why not?)
For the spells: -1 Field Spell (Not too good, need to make room for better stuff)
-1 Triple Impact (You can't risk drawing into it when you don't have 3 Sams, Sams hate dead draws)
-1 Pot of Avarice (Same deal as Triple Impact, its dead if you dont have 5 monsters, in other decks, you can afford that risk. Not with Sams)
-1 Asceticism (2 is enough, since its main uses are with Elder and summoning Elder, and you only have 2 Elder.)
-1 MST (Don't cramp up the deck by trying to fit this in, leave em in the Side Deck.)
+1 Dojo (2 makes for good consistency without it showing up when you need something else)
+1 Book of Moon (A staple I think I forgot to tell you about earlier. It's a very versatile card and almost all decks run it.)
+1 Mind Control (Being able to Synchro with your opponent's monsters is just too good)
+2 Forbidden Lance (Good cards are good. This is no exception. Protects your monsters or weakens your opponents.)
And for the Traps:
-1 Bottomless (We're tight on room here, so sadly, this will have to go)
-1 Call of the Haunted (Double Edged Sword Technique is better)
+1 Double Edged Sword Technique (You just cant beat Synchro Summoning with the same 2 monsters twice)
+2 Musakani Magatama (Spamming Synchros is useless unless you can protect them, and this card does the job well)
Fixes for the Extra:
For the Xyz, take out Emeral, Leviair and Strike Bounzer, most of the time they sit there useless, just taking up space. I suppose 1 Xyz Shien is OK, although its not my preference, people usually run 1 to work with Bushido-counter cards.
For the Synchros, take out Ancient Fairy Dragon and X-Saber Wayne (We need to make more room here, and subpar cards need to go)
Instead, try a Number 39: Utopia (2500 beatstick that protects itself too is an instant staple), as well as:
1 Ally of Justice Catastor (It kills any non-Dark, whats not to like here?)
1 Gaia Knight, the Force of Earth (Another Level 6 Synchro, with above-average attack. Why not?)
1 Scrap Dragon (On the offchance that Stardust has too low attack, or you feel like destroying something, not preventing destruction, Scrap Dragon's your man)
and 1 Scrap Archfiend (If you need a Level 7 and don't want to blow up the field, he's a good choice.)
This post is starting to get a bit long, so I'll post the Side Deck later