I talked to Nick on the phone twice the day the BHS24 hit the interwebs. I want to offer my customers the best I possibly can and while the HS24 isn't the best anymore, the difference in performance vs cost simply meant it made no sense to consider it for my commercial driver at least. I'm not trying to talk you out of it but I will share my opinion since we have the freedom to do so as has already been shown in this thread. For the cost, you will really only gain 1, maybe 2 dB max per sub. This is what Nick and I came up with my 8.75 cu.ft enclosures with 4,000w. Is that worth $4000-5000, only you can answer that. My recommendation would be to talk to Nick and see how much it would cost to fix your HS24s in case you blow one/them (he is supposed to keep the soft parts on hand to fix any issues my customers have with the driver). And then when you are able to add electrical circuits, use the 5,000w with the HS24s and see what happens as I think they'll be just fine in the 10 cu.ft. enclosures with normal audio signals (not synthetic for any period of time). With this, you'd only be giving up about 1-2 dB max per sub. If the HS24s don't hold up, well then you know you need the BHS24 to meet your needs. And I doubt you'd have any problem selling a newly serviced driver from Nick, I know I'd buy them from you if no one else wanted them.