Sloopy can you ping the pool from your internet router or server?

I am in Southern Nevada so pretty much next door to the west coast server.  Pings for me range in the mid to low 40s when I have sent them.  So far,  less then .20 invalids sometimes lower.  S5s range .25 to .35 rejected shares, the Spondoolies stuff is getting .07 to .17 invalid shares here.