Bowers and Wilkins Htm72

No... actually I'm using a pair of PSB GB1'S. Outstanding sound quality but I don't feel my current B&W can keep up. Thanks

My first instinct was to say wait until you can spring for the HTM71 because it's a true 3-way with the tweeter located directly above a dedicated midrange driver, which in my experience helps not only with midrange clarity and dynamics but also with even sound dispersion from left to right in a room.  I think the HTM72 is probably a relatively small overall improvement over your current center given its similar design configuration and size limitations.  Problem is, the HTM71 costs $1400 or so, which may be over what you're willing to spend. 

BUT, since you're already mixing speaker types, if I were you I'd absolutely audition an Aperion Audio Verus ll Grand Center speaker, which may be the perfect compromise for you between cost and performance.  Aperion is a direct seller, which means they can offer higher quality drivers and components at a much lower price than retail brands, and they offer a true, no-risk and no cost (including shipping both ways) guarantee that lets you demo the speaker at home for I think 60 days.  Read the reviews of Aperion's center speakers and I think you'll agree they're worth a listen.  I think this will give you a BIG upgrade over your current center without having to spend 1400 bucks, and the free in-home demo is just a no brainer.  I think you'll be absolutely thrilled with the performance of the Verus center.  I'm a hardcore audiophile and pretty serious about HT as well, and I recommended this speaker to a friend of mine and it just sounds phenomenal.  Give it a try -- I seriously doubt you'll return it, and you'll save a bundle for the performance you're getting.  Best of luck in whatever you choose. 

https://www.aperionaudio.com/collections/open-box-closeout-speakers/products/open-box-verus-ii-grand...

Update... I went and auditioned three Bowers and Wilkins center channels. The Htm6, the Htm 72 S2 and the Htm 71 S2. The 6 was very impressive for its small size, I was impressed. The 72 had a wider sound depth and probably would have been good for me. I pulled the trigger on the 71...to me it sounded that much better than the 72 and I plan on replacing other speakers in the future. I also listened to the 702 S2 towers and they were awesome. Probably will be my next purchase down the road!