New Loudspeakers - Castle Kendal 2

Having lived with the Kef 104s for a while now, much as I have loved having them, they are too big and bassy for the room. In addition, I don't have grilles for them which is leading to aesthetic friction as the experiment moves into being a permanent fixture. To see if anything could be done to resolve this, and to satisfy my next curiosity, I have replaced the 104s with a pair of Castle Kendal 2s. In case you don't know them, they are a medium sized stand mount unit, two way with a front bass port. I have had these for a while now taking up space. They needed re-foaming but I found a very cheap pair of other shabby Castles with the same drive units locally, swapped them over and now had a working pair. As a two way loudspeaker, they are frankly rubbish. The first word that came to mind was charmless. Several more were gutless, messy and indistinct. The benchmark is still my trusty pair of Epos M5s. These are bookshelf speakers but sound better than many standmounts I have had.
Anyway, I stripped the electronics from the Castles, covered the input hole with perspex and finally fitted the Neutrik Speakons I kept threatening to do with the Kefs. At last I had done it properly!
I have to say that the Castles sound much better now using the bi-amp arrangement of the 303a2s than they did before. I would actually say they are a slightly better solution than the Kefs. I still find them too bass heavy at a volume I like so I hurriedly moved onto to changing the bass lift of the amps from normal to low.
This has allowed me to turn up the volume a bit but I'm undecided what difference this change has made and whether I detect a thin sound or tinniness now.I will persevere with this new arrangement for now, if necessary put the bass lift back up to normal and perhaps try messing with the foam in the speaker cabinets to tune out some of the extremes.
On a positive note, the clarity you would expect from bi-amping is there still, the pace of the Castles is much better than the previous dull and lethargic sound and there are still a few tweaking options to try. Some of them are re-levelling the stands and isolating the cabinets from the taller stands I am now using for the Castles.