I have some rough sawn cherry boards that I got a while back from a Craigslist ad. Some of them are cupped and twisted. I need to plane them smooth but wonder is there a right way and a wrong way to plane a twisted board? Being twisted I wont be able to completely smooth one side then turn it over to smooth the other side. I'm assuming I should feed the boards through the planer and alternate sides with each pass? Also alternate end for end?