Ok lets be honest here.
1) Griffons are NOT taken because they are cool and stylish, they are taken because they can fly and get pounce. They are twinky.
They are better than a warhorse in everyway, flight, damage reduction, better attacks, better saves, ponce rake.
No, griffons are twink.
2) Griffons are 10*10. You are 5*5. Your lace has a 10' reach, let me draw you a diagram for a moment:
00X00 G= Squares Griffon takes up
0XGG0 X= Squares you threaten
X0CGX C= YOU !
0X0X0
00X00
You will note there are 4 squares which both you and the griffon threaten. Therefore it is perfectly simple for the griffon to achieve a pounce AND you to achieve a charge.
If you use a 10*5 mount there are 4 such squares.
00X00
0XGX0
X0C0X
0X0X0
00X00
Further to the above argument.
To have spirited charge you must have ride by attack. Ride by attack RAW only concerns the riders attacks not the mounts.
There is a good argument you can ride, attack, and then you mount charge as ong as all the movement is in a straight line.
The comment about horseback was ment to be more of a point about the SRD.
The SRD, even the book, have a horrible habbit of taking words that are misused everyday and turning them into "game turns" such as two handed. This causes confusion when people writing another section of the book dont realise that a word they use everyday has a specific defined meaning.
Infact two-handed as a game term is a bastard term anyway, becuase its almost a size but not a size. A two handed sword to a human is a one handed sword to a giant. But its listed as a two handed weapon, its there in the rules .. Two-handed weapons: Greatsword.
So.. what is it, is it a two handed weapon just because it is listed as a two-handed weapon. Or is it one handed because a giant is wielding it ?
Giants dual wielding medium gereat swords would make alot of player shaped messess, maybe I should do it
Further, if you want to rule all two handded weapons are two handed regardless of how they are wielded then you just made bastard swords the best weapons in the game along with dwarven waraxes. According to the FAQ these are "two handed weapons that can be wielded in one hand", like the lance.
I think we need an outbreak of common sense. If you want I propose a house rule.
Definitions
"Two handed: These weapons require two hands to wield unless specifically noted otherwise. When wielded with only one hand treat them as medium weapons."
Saves alot of hassle doesnt it ?
Majere