I've read some materials on servicing one piece cranks. I'm familiar with just about everything except for servicing the cups. Removal appears to be using a dowel and tapping on it with a hammer to loosen the old cups. How are the new cups put in, aside from that expensive Park press thing? Park tool site (of course) only alludes to using its own cup press to put them into the bottom bracket, but would it be possible to use, say, a small hammer and little block of wood in a manner similar to how you'd remove them with the dowel?