Well unless you're running a Stall-type deck, like my deck destruction or Burn deck, smaller decks have a greater chance of winning.
Yes I would, now behold my deck.
Monsters:
Penguin Soldier
Cyber Harpie Lady
Sonic Bird (2x)
Mirage Dragon
Chaos Command Magician
Magician's Valkeria
The Stern Mystic
Maha Valio
Magician of Faith
Royal Magical Library
Witch of the Black Forest
Sangan
Kuriboh
Zombyra the Dark
Dark Blade
Summoned Skull
Skilled Dark Magician (2x)
Socerer of Dark Magic
La Jinn the Mystical Genie of the Lamp (2x)
Dark Magician (2x)
Total = 24 cards
Ritual Monster and Spell:
Black Luster Kight
Black Luster Ritual
Total = 2 cards
Magic:
Scapegoat
Axe of Despair
Malevolent Nuzzler (2x)
Blastia of Rampart Smashing
Mystic Plasma Zone
Swords of Revealing Light
Pot of Greed
Monster Reborn
Raigeki
Harpie's Feather Duster
Fissure
Change of Heart
Dark Hole
Total = 14 cards
Trap:
Spellbinding Circle
Magic Jammer
Trap Hole
Covering Fire
Waboku
Seven Tools of the Bandit
Exchange of the Spirit
Chain Burst
Hidden Book of Spell
Cursed Seal of the Forbidden Spell
Meteorain
Shadow of Eyes
Enchanted Javelin
Total = 13
Grand Total = 53 cards
Okay so it's bigger than most and it has a hell of a lot of 'forbidden' cards but I don't play in tournaments anyway. It maybe a bit much but at least there's always a back up plan here. I just wish I had more spell casters but at least I have decent support cards.
As for your deck, young one, yeah it's a tad too big. I love Spellcasters as well, but some of the cards don't fit well with the deck. The Sonic Birds, for example, should go. If you like La Jinn, a good card to pick up would be
Ancient Lamp (I think that's what it's called) for it's ability to summon La Jinn, plus it's awesome face down defense ability. Cyber Harpie Lady isn't that great either for the deck, nor is Mirage Dragon. Sorcerer of Dark Magic is good, but tricky to get out, so it's a gamble. I'd try and get one more Skilled Dark Magician as well.
As for the Ritual Monsters, just take them out. Ritual Cards are way too situational to work even in a ritual deck, so having them in the deck just hurts.
No real problems with your Magic Cards. I'd throw in Heavy Storm maybe, but with the super powerful magic cards you already have in their, I don't see it being a problem!
Nothing really wrong with your traps either. Maybe get some Bottomless Trap Holes, but otherwise no problems here. With the Magic & Trap you might want to take a few out. I'd try to get your deck down to at least 45 cards.