no, im saying at the point in time you said, with piccolo destroying the moon, nappa blowing up cities, krillin was very weak and guru said he brought out all the power krillin could ever have, so he never really got strong enoughSo at the end of DBZ you're Saying krillin is weaker than Nappa :|
like i said above, krilling never got stronger after the namek saga cuz guru pulled out all the power he could ever haveAt the end of DBZ, Krillin was at Goku's inital SS stage when he versed Frieza IMO