Hi jes_ON, I read throughout your analysis, and I appreciated it very much. You are very helpful 
About documenting our work hour, I did send to Buffalo the payroll records (along with employment letter, T4-2010, NOA-2010), i.e. all the pay tubs (Jan 2010 - Apr 2011), and also 1-sheet summaries of the all pay periods (showing Gross salary, Hours, Taxes, CPP, EI, Net salary, Employer remittance, etc) but the thing is I kept track the information for every 2 weeks (not weekly) as I have biweekly payrolls. Do you think it causes any confusion?
I followed your calculation, for example:
Jan 1-14, 2010: 80 hours, so I consider them as 2 full-time weeks, them I sum all the full-time weeks till April 2011.
While;
Mar 15-29, 2011: 74 hours, then I consider them as 2 part-time weeks (even though I know I worked full-time in 1st wk, but then missing some hours in 2nd wk, but I did not have record), then I add up all # of hours from other part-time weeks till April 2011, then divide all by 37.5
Lucky I got a total of 56 full-time equivalent weeks > 52 required F/T wks. That was from Jan 2010 - Apr 2011.
A while ago, I used to wonder how the VO calculated the work hours
Do you think there is any chance that the VO requires to assess my NOA-2011 and T4-2011? I am Apr 2011 applicant, recently had ME sent to Ottawa on Nov 16, 2011, and I am part of CPP-O.
Thanks again.