Volleyguy...
Again as a warning, my suggestion you have to really remember here you can only expect in some way to end up being as good as the speaker is... I would suggest since going this far you need to probably build outboard crossovers, re-wire with better cable internally, probably deaden the cabinets further, possibly some simple bracing, maybe putting new footing on the speaker via spikes or some other means of coupling or de-coupling to the floor...
I mean it is all critical in taking a design to the next transparency level, your kinda just taking the same old desert receipe and dumping more whip cream on it vs. changing the receipe a little. Again you were kinda warned about this and spending what you did without maybe addressing some other issues.
You will still need a far better INductor on your woofer to really open up, and you also have the issue of being into a more complex situation since this is a 3 way speaker your working with and the midrange is always the hardest in the design.
Good Luck