Kinetic Form and Singularity Questions

[d'Eon]

What exactly are the benefits of Kinetic Form?

Kinetic Form:

You are able to suspend your body in a large mass of elemental matter. Until the next time your burn is removed, you can change your size to Large or shift back to your original size as a standard action. This doesn't change your ability scores in any way. At 16th level, you can accept 1 additional point of burn to instead change your size to Huge. You cannot use kinetic form to decrease your size.

Your space and reach increase, right? Do you get the modifiers for size to AC and CMB/CMD? Lastly, if you use Kinetic Blade/Whip, do the damage dice go up to d8s?

Unrelated, Singularity says it does ¼ damage, or ½ damage if used on a negative blast. So at level 8 with 20 Con it does (4d6+9)/4 (avg 5.75) with gravity, (4d6+2)/2 (avg 8) with negative, and (8d6+13)/4 (avg 10.25) with void?

Kineticists are confusing. Interesting, but so. much. text.

[CalethosVB]

You gain everything there is to gain by increasing size except for an increase to your ability scores since Elemental Overflow already takes cate of those.

That means you gain reach and space plus size modifiers to AC, CMB, CMD, Stealth checks, Fly checks (for being checked or blown away), and any other circumstances where being of a greater size may affect you.

Since Kinetic Blast is a spell-like ability and not a weapon, the die size does not increase. Still, you have gained reach, which makes Kinetic Whip killer with Combat Reflexes.

[Texas Snyper]

You get all modifiers from increased size except for ability score changes. You take the space up and get the appropriate reach, which is why kinetic whip becomes insane at the larger sizes with a 20-30' melee reach weapon iterative attacks and AoO. You also get the AC, CMB, CMD and skill check changes like what CAlethosVB said. Intimidate also has a size modifier I believe.

And you are right with the singularity math. Always remember to roll the full dice and then divide appropriatly. 1/2 dmg negative blast at 4d6 does not mean 2d6, it means 4d6/2.