Neither one
This isn't about whether you or any other reconer is competent.
Simply put, a pair of JBL L166 speakers with excellent original woofers / original drivers is worth more than a pair of JBL L166 speakers with aftermarket drivers/diaphragms/cones. OTOH, if the speakers have rough cabinets, non-original tweeters, no original grilles it really doesn't much matter what you put in the woofer baskets for value.
The L166 is a very good speaker, one of my favorite classic JBLs, but its value to me and other collectors is as an original, not for its ultimate SQ which will be less accurate than for example a pair of new Studio 590s or many other lesser-known used speakers. To retain their value they need to have the original parts.
Maybe you're willing to buy speakers without original parts, but if so I suspect you're not the guy who was the backup bidder on my $3,350 L100As last year, you are more likely one of those who might pay $500 for a flip. The guy who bought them, or any other of my well-preserved collection of JBLs and others is a guy who wants only original.
This is not a concept unique to JBL or to audio, there's original and there's everything else in a collectibles market.
If the OP were interested in reconing the speakers I would suggest finding a pair of baskets that are already without cones or with damaged cones to have reconed, and set these woofers aside for the later option of reuniting them with the original boxes and the best value to a collector.
A collector isn't gonna give top dollar for speakers with the woofers foamed on the wrong side, or a big wad of glue on the front of the cone. The value is already gone.
A JBL with the foam (looking at you, nolasally) on the wrong side will have a sunken suspension, and won't perform to it's full potential. Period. It will whack the mass ring on the pole piece.
I'm not even going to address the personal insult, other than to say that you don't know jack **** about me.
I buy my parts from the exact same vendor that Simply Speakers buys from, so I guess my recones are just as worthy, eh?
I reconed my 122A, and I'm glad that I did. Here is how they came to me:
Original cone, cut down to accept a generic 12" surround. This was done in the 90s before proper sized surrounds were available in the aftermarket. The dust cap is also incorrect.
It could have been refoamed with the foam on the front to hide this, and an oversized DC could have also been installed. But that would be pretty hokey.
When I cut it apart, I found this:
Notice the heat damage? Notice the bubbling in the paper VC former from 30 odd years of humidity cycles? Notice the sunken and worn out spider? But hey, they worked and had original cones.
A lot of original JBLs from back in the day are in this kind of condition, I'd think "experts" like you would know this. Guess you're not such an expert after all.
The new (egdewound, just like original) VC doesn't have these problems. You tell me which you'd rather have.
The aftermarket cone was made in the same pressing plant as the ones JBL bought back in the '70. It is absolutely identical to original.
Pretty ****ed up and totally lost value now. NOT.
