This wasn't your question, but are you SURE you want a lightweight "travel" plate? Travel has gotten so annoying lately, and lost baggage so common, that I can't criticize people who check no baggage and carry all their scuba gear on. Nevertheless, for tropical diving in a 3 mm suit or thinner, I have long preferred a steel plate, so I don't need to carry so much lead on the dive. With a steel plate and a thin wetsuit, I may carry no lead at all, or at most a couple of pounds in trim pouches attached to my harness, more to help balance myself in horizontal trim than to decrease buoyancy. Lead sucks. If more than a few pounds are needed, its positioning on a belt or off to the sides in weight pockets messes with the goal of being able to comfortably stay horizontal when motionless, as I frequently need to do when I stop to examine something closely on a tropical reef dive. And with lead weights, you have to find the right size weights, put the weights on, take the weights off, carry them around, each dive day. Whether weight belt or pockets, it's still a PITA to me. I would rather have essentially all my weight on my back, in the form of a plate, right there next to my center of buoyancy. I can appreciate that each of us values the pros and cons differently, but I prefer to minimize the amount of lead on my body at the cost of having to deal with all the potential problems of checked baggage. So, my advice is to just be really sure you want a lightweight "travel" plate before going down that route.