At the Tech session in Ohio, I noticed how Tom Sargeant put up his softtop, engaging the rear latch in particular.
Since my top is fairly snug, I always close the rear first, then apply appreciable force to get the front latches to engage. If I would close the front latches first, I could not imagine being able to close the rear anymore, that's how much force it requires.
Tom showed me how though: close the front first, then don't attempt to press down the rear latch, but simply swing it shut. The speed of the movement together with the mass of the rear part of the softtop (force = mass times speed?) closes it.
I tried it for the first time on my own car yesterday and it worked like a dream.