Harmful to shift without clutch?

[talnlnky]

i did this on my 86 jeep, and on my 08 LB.... i don't know why people would think it is hard. If you get the revs right.. the thing will nearly move the gear itself, you hardly have to guide it. Just do it fast when it goes, don't slowly change gears... otherwise you will grind the gears. A few times I have kinda held onto the stick... not really paying attention and then you hear it make some noise.

Soft shifting like that doesn't seem to be as fuel efficient... you lose a tiny bit of momentum compared to shifting with the clutch which is a slightly faster process.