My sons were both circumcised with a little plastic ring that just cuts off the circulation to the foreskin, letting it die and fall off. It didn't seem to bother either of them much for the few days it was attached.
All this hyperventilation and cries of barbarism are entirely misdirected and unnecessary. Yes, parents should have the choice of whether their male children have the procedure performed, but no it's not "genital mutilation" on par with the stuff done to girls in third-world countries. Not even close.
I'm glad your sons didn't suffer.
It's still a useless thing to do. No purpose for it at all anymore beyond religious reasons. 90% of the human males on this planet don't have it done. If it were so important, necessary and/or desireable the reverse would be true.
Common sense.