What are the advantages and disadvantages of the picany style or direct mount bases on a Rem 700 action in general. I am mostly curious, for this application refering to a Sendero 300 RUM. I am curently using a 6.5x25 Leupold VXIII, but plan on the Nightforce 8x32NXS shortly. What the heck is a 20-40 MOA taper? Is it basically a "wedge" if you will, shaped mount that lowers the front of the scope?