just to share my current fav cases;

Speck's Fitted case.



SGP's Neo Hybrid EX



SGP's Neo Hybrid A



Vapor 4 iPhone



sorry for the dust and lousy picture quality.

Hi guys...

Clearly bro, you screwed up the SP installation. 

I've played with lotsa SP and can say they are not really very sensitive...more so with SGP products.
The more expensive it is, the more easier to apply.

There are two ways of curing that.

First Method
Use the tape method....make sure its a large surface tape. Not those slim type.
Use a clean tape...not those that are kept for a long time and dirty at the sides
After you have stick the SP to the tape...apply pressure lightly and evenly so that all the dust and whatever stick at the tape.
I say apply pressure lightly because if you press too hard, the dust can create a dimple on the SP.

After that, make sure you clean the Screen or back plate. Blow it just before applying the SP to avoid dust.
During application, make sure the SP is face down to avoid airborne dust from sticking on it.

Still not satisfied, try again a few times.

Second Method
This is very subjective..some will agree or not, its a personal thing.
Its call the wet method.
Hands MUST be washed first so that no oil or dirt on it that will make it scratch.
What ever you do, NEVER use a towel for both wet hands or wet SP.
Using a towel to dry it will make is worst.

First is clean the iPhone first. Put it aside.

Then clean the SP using water an a bit of soap. Rinse it again. Then wait for a few seconds for the water to drip.
This process takes max 10 seconds..no need for so long time. No need for it to dry completely.

Blow the iPhone just before applying the SP to avoid dust.
Slowly apply the SP and remove all traces of water or bubbles on it.
Wait for a few minutes for it to dry up.

Advantage of the wet method is you can adjust the SP since it will be slippery.

If you are not confident, try it on the back plate first.
Using a Card to even up the SP is also good.
Which ever method you use, Stick the SP first on the iPhone...then only put the Frames on it. 

I really can't tell if the stuff you get it Genuine or not...all I know is I've never seen SGP packing their products wrongly. Just ask anyone who have bought Genuine SGP stuff. Its packed so good you have no doubts about it.
Good luck