As of a few days ago, my 2000XJ OEM radiator started leaking on the passenger side at where the plastic side tanks are crimped-on to the core. I've used CSF 3-row radiators in the past and they didn't last long enough. What Ecomike showed, with the CSF Warranty info, is that even though the CSF may be all-metal, the metal side tanks are still CRIMPED-ON and NOT soldered or welded together. That explains why I had problems with them.
So it looks like I'll get a 3-row Champion all-welded, all-aluminum radiator when they get them back in stock. I sent an email to Champion asking when they'll be back in stock.
Best regards,
CJR