Bi-Amping Options B&W 801 Series 2

New to me Bowers & Wilkins floor-standing full-range monitors with two sets of binding posts.
Currently have dual MC252 solid-state amps (with autoformers) connected as follows: (1) to both bass drivers and (1) to midrange and treble drivers.

Meanwhile, I have a Rogue Audio Stereo 100 sitting idle (although I could hook it up to my vintage Warfedales). I’m wondering if I would be better served by bridging both the MC252s and putting them both on bass duty (500 Watts to each driver), and put the Stereo 100 to use driving the midrange and tweeters. What do you think?

Especially interested to hear from someone with experience driving this particular speaker, which sounds wonderful, by the way. My system is fully described (but not well pictured) under my profile in Virtual Systems. And, if anyone has a lead on an original Bass Alignment filter, I’m all ears.