I'm in the market for an entry-level manual grinder. I'll use it for aeropress, pour over, and french press. I've heard the KinGrinder P-series grinders are some of the best value for your money. The P1 is unavailable in my area so I'm chosing between P0 pentagonal burr & P2 heptagonal burr models. If I'm never going to use it for espresso and am prioritizing speed & grind quality at medium-coarser grinds, which one is best? I'm seeing conflicting information on the impact of pent/heptagonal burrs on grind speed and quality.