I used the POG 107 as my main stick last year.
For full poly I strung at 51 lbs (usually FB Alu Power)
GUt/Poly 55 mains/50 crosses
Full syn gut 56 lbs
For a standard sized racquet (~98) I would string polys in low 40s
I wore an HRM a couple times last year. Match play. ~4.0 level. Playing guy who gets everything back. Long rallies. Pretty hot outside. Avg heart rate over 90 minutes was ~140. This was using Polar wrist based HRM. Thats alot of calories. Way more than 5-600.
thanks everyone for replies. I only asked because I am considering buying a racquet at a local shop and I wanted to get something close to spec in weight and balance. Really just trying to eliminate outliers.