I think that there must be something wrong with your dwell meter. Since you're getting energy to be read by the DVM, there is something there to measure. Have you tried your dwell meter on something else to see if it works?
The discrepancy with your CD about 35% to 45% is very strange. A number of people have done this and reported here about 50%. Mine, once warm and in closed loop, just goes to 50% and fluctuates around that.
Best of luck,