Spark Plugs : which ones to use 4age ?

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Sutte-
Last time I bought stock replacement plugs for my car (bluetop) the plugs were shipped with those nice plastic protectors on the tips to make sure the tips stayed pristine. But, they were all gapped to 0.8mm when the spec for the plugs and my car is 1.1mm.

So despite the "DO NOT ADJUST GAP" warning I adjusted the gap and said the hell with them, I know how to adjust a gap. I just go back and forth between the two sets of factory plugs now, maybe every 20,000 miles I'll pull the plugs, swap in the other set, and clean and regap the ones that came out. Very little cleaning or gapping needed. The hard part of trying to find a 1.1mm wire gapping tool (to measure the gap). In the US, they simply don't exist.

BTW, my plugs are the stock "platinum tip" which is not platinum--just a wafer of it on the tip. 50,000 miles in street use is no problem for them, that's what they are intended for. Copper tips erode much faster. Iridium...Damfino who needs it, certainly not street drivers.