so the way a snow board base works wth wax-
as you glide accross the snow, you create friction, this heats up the base and melts the snow under you so you are basically riding on little water droplets, wax reduces the cohesion between your base and the water droplets.
Extruded bases(cheaper but easier to fix) are made from melted plastic beads forced through a hole to make the flat strip for the bottom of your board, they aren't very porous so they dont hold much wax. you can fill in gouges easily with ptex candle, just look it up on youtube
sintered bases take the same beads and press them together, the heat from pressing causes the beads to form together. this is much more porous and holds more wax. so the wax heats up as you ride and moves to the surface of the base and keeps a nice layer of wax in contact to the snow making you ride faster. filling in gouges is much trickier with ptex ribbon and better left to a pro.
tl:dr- sintered bases are faster but you have to wax them a lot. extruded bases are slower but easier to fix.
no all of these boards are softer flex, which i easier. and also have the contact points lifted out of the snow for less catchy ride. they will be great for learning to ride in general and then also perfect for progressing in the park.
well the signal park flat doesn't lift the contact points but the signal park rocker does. the flat will give you better high speed stability though.
Dude, suckin at somethin' is just the first step to bein' sorta good at somethin'