Has anyone upgraded power cord connectors?

Hi Hdm,
I just received a few Hubbell 5352, 5362 and 8300, as well my standard P&S 5352 and there's probably an A&H (Cooper) somewhere. I'll take 'em all apart (except maybe the $$$ 8300) and see for myself. Sure look damned similar on the outside and through the ports....

This IS a tough one. There's less difference on the male AC parallel spade end, but do look for a plug that has big, thick spades with large, all-brass screw-clamp contacts.
The IECs were a different story until recently. Used to be that most of us tolerated the flimsy, solder-only thin contacts in the Schurter IEC320 4700.0603, or spent $$$ on Marincos or Hubbell or Furutech.
Just recently Schurter completely redesigned their IEC320 (now called the 4781.0100) into a GREAT connector with heavy screw-clamp terminal blocks and thick spring-clamp terminals! Finally. So building affordable PCs is now easier than ever. In my opinion, however, the quality of the cable itself is overwhelmingly more important than the connector once a certain level of minimal criteria are met.
Email me for details if you want. Cheers.
Ern

Bob, Since 19364 is just plain old unshielded multistrand 14AWG in cheap PVC, why not just use the thinner-PVC 19354, and save 25%? Or use the double-shielded Teflon-insulated 12AWG 83802 for just $2/ft? Very clearly a superior cable for audio use. I can understand using the 19354/64 series for long cheap extension cords for HT, etc., but for better-sounding audio PCs I would expect that DIY'ers would prefer prefer an all-Teflon shielded 12AWG cable at only $10 more per PC.
More interestingly, I do agree that using good duplexes is important, but as long as minimum criteria of large-mass, triple-wipe contacts and strong screw-clamps, why would there be any difference among those that share these necessary, and perhaps sufficient criteria? I've torn apart Pass & Seymour, Cooper, and Hubbell 20 amp 5352, 5362 and 8300 dupes, and they're remarkably identical. Do you think the all-brass backstrap of the "62" and 8300 is important?
I wouldn't think so, and like the 5352s for value and VERY tight contact in all three of these manufacturers. The only one that seems to fall short is the Leviton, so far.
Thanks for your help.