I use a variation based on the free volume profile formulas that esignal offers. Not completely LDB, but still very useful.
Can you explain more about this? I use eSignal also and know of the volume indicator. Are you somehow combining the volume indicator with the Market Profile add-on?
Don't bother with the market profile add on, it currently doesn't work correctly, and you don't need it. Use the EFS formula from esignals forum and open the formula with the editor and read the comments for the settings. Learning how to use market profile is a steep learning curve, but IMHO, very useful. Mind Over Markets by Dalton is good for this. And here is a link http://www.cbot.com/cbot/www/page/0,1398,13+287+499,00.html to a pdf mp handbook, also good.