This gets my vote for strangest gear to find on a bush walk. Ray Jardine is a the granddaddy of Ultralight and wouldn't be without one. If he advocates using one, while still achieving a base weight of 4.2kg, then maybe I should take some notice.
He argues excellent ventilation and avoiding condensation build up (and consequent cold) in the wet. In dry hot conditions the ability to dress appropriately while being shaded from the sun (very common practise in Asia). While clearly no good for the bush bashing sections, the AAWT does include large sections of fire trail and otherwise open area, so let's give it a go.
Following Ray's directions I purchased one and modified it (took to it with a hacksaw and pliers).
Cost $15
As new - 362g (12.9 oz)
Modified - 265g (9.2 oz)
Remarkably, it still pops open and locks in place. Hats off to Ray !!
Before - Springs and struts and stuff
After - minus the spring, the spacer cut in half (about 2.5cm now), the struts cut out and the central hub removed. Also the trigger release, the top 3 inches of the shaft and the "U" bit of the handle removed or cut off.
Cutting the spacer in half, means that the spoke hub now lies higher than the horizontal and the compression forces are 'locking' the umbrella open. Have a look at one to see what I mean.
The bits removed add up to > 100g. The handle alone is worth 50g, the spring 22g
Lesson learnt. Don't hacksaw with umbrella supported on a rough surface (outdoor tiles) - will ruin fabric. Guess the silicone sealant will get a workout shortly.
PS - Nomination for best bit of gear - goes to the digital scales - essential kit for the ultralightest (and you don't even have to carry it :)) - grab one off ebay !!
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