I can't really hear a big difference

John is right, once you take it out after a few months, you'll realize what you're missing. It's subtle but imporrtant in musical terms. Ghostrider is also right about the psychology of audiophiles. Good one!
The other headache is that upgrading is not a simple process. Sometimes the best components need the better power accessories, cables, and so on, to shine. Also the BAT probably does best in an all balanced system, that is one using XLR connectors, which I take it the VTL does not have provisions for.
Try new interconnects and a good power cord like the JPS Labs digital, for a month. Be patient. If after a month it still doesn't sound better, then you can post and tell us all how we're full of shit!
This hobby is like eating the forbidden apple: there are things to know and to learn, but doing so often costs a bundle and may lead you down the garden path paved with good intentions.
Tom

Ditto on the cabling issues. Also, I'm sure we all "listen" for, or "hear" different things. Certainly most modern digital playback devices have very similar frequency response measurements. My system is probably not that much more resolving than Dennis' (except for the cables), but I find that changing even the transport can mean the difference between audio nirvana and audio hell! Objectively, the difference is probably small, but it is the difference between wanting to get out of the listening chair after 20 minutes or sitting all evening in the dark with a big grin.

Component output levels are not standardized, Dennis. Level-matching will therefore always be a challenge when comparing components. If the Sherwood's output is higher, and you're not properly compensating for that, it would explain a good deal of what you hear.

DTM, Bomarc makes a very valid point in that output levels need to match to make an accurate comparison. If you have access to an inexpensive (Radio Shack) sound meter try adjusting the volume of the Sherwood (lower) to match the BAT's. I think the BAT's strengths will become more self evident once you get beyond the volume differences.

My non-SE VK-D5 was a clear winner (in my system) compared to 5 other ($3500-$5000 retail) contenders.

I went from a Rega Planet 2000 to a Meridian 580/24 and the difference was huge. The Meridian is much more detailed and dynamic, it transformed my whole system.

I do believe the cables are choking the sound on your system Dennis.

Let us know how it goes