Oh, I get it now, thanks! :-)

I also understand why, in terms of accuracy, a globe which can be held with one hand, should show neither mountains nor the equator as bulges... But I haven't clarified why I wanted to make the globe in the first place: I want to get a feel of how the earth's geography allows or inhibits organisms from expanding in various places. Biologically speaking, a population of animals can easily (given enough time) enhabit a large flat landmass. But if the altitude changes abruptly, it becomes a barrier due to temperature and moisture changes.
This anomaly between the effects of distance and altitude (distance being a smaller obstacle for populations compared with altitude) is why I'm willing to overlook the inaccuracies you have all mentioned :-/