Personal Handicaps and PY

Hi all,

This question may been asked before and there may be a simple answer, so if there is I'm sorry.

For our fleet races we use Personal handicaps and a modified PY (because we have some older boats that just cant perform like a newer ones).

I have been trying to find a way to combine the 2 systems into the scoring. Our corrected time is calculated the following way.

c = corrected time, e = elapsed time, Boat handicap = PY, personal handicap PHC

c=(e*1000)/(PY*PHC)

If someone could point me in the correct direction it would be greatly appreciated

cheers

Steve