[Elecraft] Single or dual paddle??

[gwwhatley at juno.com]

I'm looking at Begali paddles.  I'm used to dual paddles (Bencher, etc), but never use the iambic feature, and don't intend to in the future.    I have never used a single paddle, and wonder if it would be very different from a dual??  Is the single more conducive to making sending errors?  (I make too many with a dual)
 
One guy on eham said it was hard to get the Simplex tuned in just right. He said it was  because he uses very close contact spacing.   Anyone out there who has used a Simplex single and care to comment? 
 
Tnx, George, n4ym