Master/Slave Question

Hello,

I just installed a new CD Burner and DVD Burner. The CD Burner is a HiVal 52x24x52 (replacing a 32x12x40 LTR-32123S LITE-ON) and the DVD burner is a LDW411S LiteOn:

writing: 4x DVD+R, 4x DVD-R, 40x CD-R00
rewriting: 4x DVD+RW,2x DVD-RW, 24x CD-RW
reading: 12x DVD-ROM, 40x CD-ROM

which is replacing a 48x CD reader, 16x DVD reader (LTD-163)

I kept the CD Burner set as “Master” because that’s what the old one was set as. I set the DVD Burner as “Slave” because that’s what the old DVD Reader was set as. However, is it better to set the DVD Burner as “Master” and the CD Burner as “Slave”? Or does it not matter? Also, would I be better off removing the CD Burner and keeping the old DVD Reader, for DVD to DVD copying? Also, the old DVD Reader is 16x DVD reading, while the DVD Burner is only 12x DVD reading. Is there a significant boost from 12x->16x reading for DVDs?

Thanks
Mark