Thanks much to all who responded!
So, it seems as though the consensus is the tripod is fine and the ball head needs to be replaced. Way back when I was looking at ball heads I considered all recommended choices, with the exception of the Triopo RS which I haven't heard of before tonight.
I'm considering all choices and open to any others. I have some familiarity with Acratech in that I owned a QR for a while. I definitely appreciate the quality of build and lightweight design, but I found the QR a bit too light duty. Not a huge deal, but I found myself having to crank down the knob to prevent settling.
There is a currently a Markins available on my local Craiglist which is about $100 discounted and tempting. However, I seem to (almost) recall an issue with them locking up in cold weather???? I do shoot in severe conditions at times and this would be a concern if I'm remembering correctly. Do I have this right, or am I confusing it with something else?
Based on the above, I'm leaning toward the Arca Swiss P0. The P0 was a new model when I last considered ball head options and I did not really consider it a choice at the time, but now it seems that it is a contender. I take it that it will perform "nearly" as well as my B1? Again, my biggest concern is settlement and not having to crank on the knob. When shooting in cold weather this can be a real pain and one of my big concerns going lightweight.