The cheap pump that came with the boat I believe you're concerned about getting 7psi in the floor of your sk100ds. works just fine for me. (since I have four of those boats, I also have 4 of those pumps) I typically fill my boats with a shop vac plugged in to an inverter, makes short work of getting the mass of air in. I then top off with the pump that came with it, it easily does 7psi. and my tubes since they are less, usually only take 2 - 3 pumps each. usually about 5 or 6 to get the floor up to pressure after filling with the shop vac. I carry the pump in an Aire "cargo hold" - I'm assuming you want to use the k-pump because of it's size and portability. really not a lot smaller than the pump that came with the sk100ds. but I guess you get to save on space that the hose occupies.
"Thats what" - She