I completely agree with this but there are people that insist they need this conversion and are quite willing to pay handsomely to have it done.
Stupidity can NOT be fixed.
I've returned/refused services of numerous bolt bodies to manufacturers that have improperly machined for a SAKO extractor.
OEM Rem riveted & snap in extractors work well.
The 3 rings of steel breech/safety factor by design of any Rem 2 lug bolt is second to none.
I've never had one fail and they actually extract quite well.
The only reason I did the work was becasue if I didn't do it, the next person offered the job may not be equipped properly or have the knowledge to do it properly.
I always urged the customers not to do the job.
I quite like both styles of Remington extractors and would not convert a personal rifle. I also point out to people want the conversion that the Remington extractor is only .005 smaller than the Winchester CRF extractor.
Personally, unless the rifle was being offered dirt cheap, I wouldn't even consider purchasing one with the conversion.
Why fix what isn't broken? Sako extractors will break just as often as Remingtons and both occurrences are rare as hen's teeth and can mostly be blamed on the operator