Significant Raise in Salary & H1B 8th yr extension

[pnc3006]

I had applied for my previous extension in December 2010, so the actual salary mentioned on the extension petition was based on what I was getting paid in 2010, there was a significant raise in my salary during 2011 (No change in duties/location), just based on my performance and company's performance, and now i am trying to apply my 8th year extension (3 yrs extension this time due to recently approved I-140), and in 2012 there was again jump in salary from 2011, so much so that my 2012 actual salary is 38% higher than in 2010. Below are my question i need your assistance:

Can it create any problem during the H-1B extension due to such a huge jump?

Does it matter that the Labor Wage rate when we applied the PERM is significantly lower than what i am being paid currently?

If I go for stamping (In Canada), can this be an issue?

Would await your replies.

Thanks.

[kalyan_ac]

That should not be a problem as long as being paid more than what is specified in the LCA.