why a custom built converter isn't for everyone....

Just remember that most of the better companies that do the custom as well as maybe also have ones with part numbers/listed come with “one free re-stall” within one year to the original purchaser, I know TA and FTI do. I’d assume all the others will too. The common less costly off the shelf brands from Summit, Jegs or similar probably do not. A TCI, B&M, and Hughes I’ve used in years past did not. Something to factor into the equation