Has anyone used these coils?

[Bryanj]

It used to be part of a Suzuki service schedule to swop the plugs 1 to 4 and 2 to 3 to even out the spark erosion wear

[deltarider]

It used to be part of a Suzuki service schedule to swop the plugs 1 to 4 and 2 to 3 to even out the spark erosion wear

Yep, you can do that, but personally I never felt the need, meaning: I never noticed a difference in erosion of the electrodes in such a degree that I've would have judged swopping necessary.

[deltarider]

Tried and tested by a forum member, hardly unknown!

Tested for how long? Did he have a look at the inside, the wires, the quality of the isolation in there?
If a coil is of a known brand, you can buy it, even when made in P.R.C but... if it's a non brand and made in P.R.C, look elswehere. My advice.