That's right, a light sand up front is easy and effective.
Oil base primer will give you the smoothest surface after sanding but is more hassle to use than latex. As well, oil-base finish paint will give you the hardest and smoothest finish but takes longer to dry, has more vapors, must be cleaned up with thinner, etc.
Oil base primer will give you the smoothest surface after sanding but is more hassle to use than latex. As well, oil-base finish paint will give you the hardest and smoothest finish but takes longer to dry, has more vapors, must be cleaned up with thinner, etc.
CP