Don,
You might get slightly better performance (at least in my small test) if you change it to:
v3 = val(strtran(this.Name,"P",space(1)))+100
lcEvaluate = "day1." + alltrim(this.Name) + "+" + ;
"day2." + alltrim(this.name) + "+" + ;
"day1.P" + alltrim(str(v3)) + "+" + ;
"day2.P" + alltrim(str(v3))
this.value = int(evaluate(lcEvaluate)/2)
Do not know if it will make much difference in your case, but it is easy to try :)
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges