for the samurai dps i see a systeme based on the skill chain, for make simple the samurai will be able to do skill chain bonus strike alone.
i had already given some example long ago.
for example, you have 2 skill, one is a vertical slash, the other one is a horizontal slash, if you do the two in row, it will create another attack Cross slash. it's a basic example, but i guess you can see the point about it. instead to have skill already created, the player will need to "create the skill" you will say is not different of the mudra and i will say not really since mudra are done in a order (dealing no damage) and you use the combinaison create for launch a skill.
here the jobs will have no combo, the point is to give freedom to the player to create him own combo. the samurai is a technical jobs.... then make it more technical, recquiring more skill for be played correctly is the right choice. not every jobs must be easy to play and the dragoon is a jobs based on a loooong dps cycles. here, the samurai will have the freedom to adapt to the situation, using the skill that it fit to be the best.
for the skill used for create the skill effect, they can use the basic move of the kendo, that will make it more interesting.
they can even make some skill effect only happend when you are in the right stance, and make use allows to switch between stance (cf:
http://www.freethought-forum.com/images/kendo/kamae.jpg ) instead to add more skill for create new skill effect, they can add a stances. even the fact to change of stance can be based on effect like asking to do a special combinaison for switch of stance. the possibility are limitless and it will be fresh as dps...
one more time, i recognize that not everybody will be able to love or even master this jobs... but the one that will succed will feel the accomplishement. and it will be more a samurai, since it will be like master the way of the sword.
i'm talking of the damage nullified, not the chance to parry, parry don't block the whole damage.