I don’t know about problem units, but driver swapping has definitely been done by Dale in a BLF X6 he modded for SB. Dale has said that the LD-1 is an easy switch-out for the stock driver and makes an impressive difference.
Unfortunately the ‘problem’ units are the ones that really matter when it comes to the topic of potentially popular driver swaps on the BLF X6. We all know that DBCstm is capable of squeezing high current out of a stone.
Has to chuckle. I like what L4P has done here and hope it inspires him and others to continue this kind of effort. It doesn’t always pay off monetarily so something very like a GB can be helpful in spreading risk.
Djozz, for things that everyone uses like springs it might work to go ahead and set up a prepaid investment thread to purchase custom PB springs in a larger quantity since it would take the buying power of many of us combined to pull it off and commitment to buy from even more. A custom mcpcb would need this approach but one person would still have to be point man to set it up and disburse packets when ready.