Has anyone had an opportunity to try out this call, yet?
How much higher in pitch is this call over the CatNip call?
I have the CatNip call and really like it.
What do you think about the High Pitched CatNip call?

Well, I bought one and it is higher in pitch than the regular CatNip call. I think it will work well, as I think it is easier to get that clear, higher pitched call of a young cat.

So far, it's working really well around the barn.

On 2 occasions calling with the regular CatNip call around the barn, I didn't bite down hard enough on the reed. The low pitched cat call sent all of the cats around the barn scurrying off. Must have freaked them out. It definitely sounded like it was the call of a very big tomcat.

I know some of you fellows are turkey hunters and have experienced making the call of a big gobbler, only to have all the jakes & gobblers make a hasty exit out of the county.

Cats are no different. There will be the occassion that the call of a big Tom will scatter every cat in the county! I think the High Pitched CatNip call may be preferred over the regular CatNip call for this reason. Just my 2 cents.

do you think that would be for coyotes

Yes, both of these calls are a very versatile call for coyotes.
Here are the links to the instructions:

CatNip call

High Pitched CatNip call