C4 ultralight vs z4 in the purple and green

Thoughts on the BD ultralights vs Z4 in the .5 and .75 sizes?  Still about an ounce lighter than the regular c4 but the weight is almost identical to the Z4.

The x4’s were really floppy in the .75 size but the z4 s seem to have fixed that problem. 

I really like my z4s in .75 and .5, not floppy at all.

Can't speak to the ultralights, but I have the regular C4's and Z4's in #0.5 and #0.75 and usually prefer the Z4's in those sizes.

The Z4 also has a smaller head width by nearly an entire lobe.  

I own the ULs and Z4s in the 0.5 and 0.75 sizes. The weight difference is negligible, but the Z4s are a little less bulky on the harness. The ULs are obviously more ridged when placing, but I wouldn’t call the Z4s floppy. The Z4s are quite a bit narrower than the ULs so they fit in more placements.

Overall, I carry the Z4s much more frequently. 

Depends on your application, but I like Z4s in finger sizes. Don't seem floppy to me, and I like the narrower heads for granite.

Unless you're climbing a lot of splitter sandstone, I would definitely recommend the Z4s over the C4s for the increased placement options due to the narrower head

Mike McL wrote:

Unless you're climbing a lot of splitter sandstone, I would definitely recommend the Z4s over the C4s for the increased placement options due to the narrower head

I like the Z4s is sandstone because they're marginally smaller, so you can often squeeze in the next size up in a placement that's blown out. Also the Z4's lobe-crushing failure doesn't happen as easily on sandstone.

The trigger wires suck on both, but at least with the Z4s you can see them fraying, while the ultralights just snap without warning.

I've broken 3 0.5 Z4s now, but never a 0.75. So I'd recommend the 0.75 Z4 regardless, and the 0.5 only if you're climbing sandstone, don't fall much, or accept the fragility/weight tradeoff over a Totem.