Sitbones measured

[Susan]

First, I'm sorry if my writing reads a bit "weird" - I'm not so used to writing in English and therefore just kept "lurking" here until now

But I'm so confused right now with saddle width, that I have to ask:

If I get you right, bismarckgimpy, your LBD measured your sitbone width at 145mm. You then tried a Specialized Ariel 143mm (I guess that was the suggestion of the guy who fitted you).

I ordered a SI SLR Lady Gel Flow yesterday. The description says that it's 155mm wide. I measured my sitbones at home and got 135mm from center to center, so I thought that a 155 mm saddle would fit me. But the effective width of the SLR is much smaller - my sitbone-centers sit right in the same place as in the picture that OakLeaf posted from the other thread - I guess not where they should be (btw: I'm really sad about that because the SLR looks sooo nice and is quite hard, I would really love it if it wasn't too narrow )

I also saw a SQ-lab 611 active at my LBS today. The biggest one (15 cm) is wider than the SLR, and the centers of my sitbones are closer to the center of the saddle, but still the Saddle is smaller than my outside-to-outside measurement - so my Sitbones would "hang of" of it at the outsides.

The SQlab 610 which is also available in 16cm width looks really big, I don't know if it would be comfortable for riding technical trails (getting behind the saddle). And, while it's not the most important thing, I wouldn't mind a more "sportive" look for my MTB.

Are the Specialized measurements different? I mean, if a Specialized saddle is "15cm" wide in its description, does that mean it's actually wider and has 15cm space to actually sit on (which isn't the case with the SI saddles)?

I'm confused with this whole saddle-width and measurement thing because from what I read here, 13.5 cm sitbone width is not unusual for women, but still it seems that I can't find a good fitting MTB saddle so easily.