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After trying to find ways to do a non-charge build on a Samurai, I've instead decided to go with a charge focused Cavalier.

The basics are this is an all Evil Goblin campaign. I will be taking Wolf at level 1 and getting Monstrous Mount feat at level 5 to get a Worg. The Animal Companion will be allowed the Charger archetype despite conflict of "Share Spells" because DM agrees it is obvious that this archetype should be for a Cavalier's mount. My order will be Order of the Sword so I can take advantage of another mount feat. Using the 4d6 method and already subtracting the lowest die, the array I have to work with is:

14, 10, 11, 11, 13, 18

I would prefer to use a Two-handed weapons despite the -2 Str from being a Goblin, I was thinking something like the Nodachi given it is Martial and my original character concept was a Samurai. I do NOT want Lances, even if they are an AMAZING charge pick. I also would prefer to stay away from reach weapons as this brings up the controversy about stopping the mount close enough so it can attack too or not and if that messes with my being able to reach attack it. My mount also has the feats picked out (but alternatives picks are allowed to be suggested):

Level 1 Power Attack
Level 2 Improved Overrun
Level 5 Improved Bull Rush
Level 8 Improved Natural Attack (Bite)
Level 10 Charge Through
Level 13 Rhino Charge
Level 16 Greater Overrun
Level 18 Greater Bull Rush

I have no idea for feats personally besides wanting to maybe take Saddle Shrieker and definitely taking Monstrous Mount at level 5. This means I also have no idea about the bonus teamwork feat at level 1.

Thank you in advance for reading this post even if you don't reply, and thank you if you do have build concepts or even just minor pushes in the right direction.
Edit: PFS legal doesn't matter for this build but please keep it PF and not 3.5.

Firstly I want to mention this does NOT involve charge, I know that you can't use vital strike unless the attack action is used.

Anyway, I was wondering if I could be on a mount and have the mount use Spring Attack (which isn't charging) and then I use an attack action as it makes its attack from Spring Attack, and if it is an attack action does that mean I can use Vital Strike?

To break it down:
Mount uses Spring Attack to move to target, more than 10ft and not adjacent
Mount uses attack as part of Spring Attack (mount doesn't have Vital Strike, isn't trying to use it)
Rider uses Vital Strike as an attack action before the mount moves again
Mount finishes Spring Attack by moving more

Does this all pan out or do I have a misunderstanding? Again, NO CHARGING is involved. I already looked through the FAQ and tried searching the forum to see if it had been specifically answered elsewhere and I do not see it. I personally take that as being fine but I figured it was probably best to ask.