bleeding brakes

Truth Rogerzilla. Mine is a 2005 and have no compenasating valve underneath. (is there no bleed valve at the ABS pump or the valve next to it?)

I have allways clamped the hose as Steve said. No problems.

To ease the job of bleeding (alone) there is an air operated ejector pump-ish thing that you connect to the bleed valve that pulls the air and fluid out.
Recommended if you do the servicing on a few of your own cars and the daughters cars

I normally use the Vizibleed one-way valve but I have the bleed nipple almost closed for the last few pedal strokes (and no more than 1/4 turn open at any time).  The risk with this, or any vacuum method, is that air can be drawn in around the nipple threads.  Some suggest smearing grease around the nipple to reduce the risk of air creeping past the threads, but then you could get grease in the hydraulic system.

Because drum brakes have some shoe movement in them, and return springs, you will not get as "hard" a pedal as in a car with all-round discs.  It is very difficult to distinguish between a springy pedal and a spongy pedal but the main thing is that the bleed tube shows no air bubbles.

I find it easier to change braking fluid with a slightly pressurized bottle. I do not use 20psi but much less, 5-10psi and it works really good.

Of course no one here appears to have a post 2015 car with the stability control. In these cars there is a bleed nipple on both rear drum brake cylinders. The stability control is rather dangerous and kicked in recently sending the car across the road and made the front end outside suspension compress and the nearside to rise. If there had been a car coming the other way there would have been a bad accident. We necer had an issue with our 1999 and 2007 car.

It must be quite hard to retrofit ESP to a 16-year old design with "interesting" handling characteristics. My understanding of a Jimny 3rd gen is that it is not particularly prone to rollovers, Suzuki having been burned by the notorious Consumer Reports "exposé" of the SJ410. It will slide rather than tip, unless it hits a kerb or something.