I'm keen to try an SMP saddle, but don't have access to any demo saddles at all. I've been doing a bit of reading on them (including steve hoggs write up) but can't quite figure out which model to try first as his advice is a bit different to the SMP saddle selector. Wodnering if anyone in similar circumstances might be able to share some advice.
I have sit bones measured at 100mm centre to centre, using the cardboard compression method.
I ride Selle Italia SLRs on virtually all my bikes and they are the best saddle I've found so far. (but still get pressure and numbness and times, including on really long rides, mainly towards the front when in drops etc)
I'm 32 inch waist or so, and 174cm, 74kg. Fit and strong sportive rider/club racer. Ride a reasonably but not extremely aggressive setup including moderate seat to bar drop.
Going on all that it seems the Dynamicn model or Evolution could be the place to start, but I'm not sure. Steve Hogg says the evolution doesn't fit consistent with the SMP fitment charts, and is 100mm really that narrow, or not? (my waist says a medium SMP is the go accourding to their chart).
Expensive things to test, so wondering if anyone has similar dimensions, or similarly gets along with SLRs, and which SMP they found works for them.
I am almost exactly the same height, weight, and waist size as you ... FWIW I am 5'8", 32in inseam, 31-32in waist, 154lbs/in-season, 162lbs/off-season. I rode Selle Italia saddles (Flite, SLR, and Kit Carbonio) for over 20 years. In my mid-40s (I am now turning 48), I started having serious pudendal nerve problems resulting in numbness and perineum pain. I went to a local bike shop where they have a comprehensive selection of demo saddles that you can take home for test rides. I tried nearly every model from every brand (Specialized, Fizik, Prologo, Selle Italia, etc). The Selle SMP saddles were a complete revelation for me. It is as if the saddle does not touch your perineum at all and focuses all contact at the sit bones. I cannot overstate how different this felt to me than any other saddle I tried. I don't remember all of the Selle SMP models I tried, but at the time, the one that seemed to fit the best was the Selle SMP Dynamic. I now ride the Dynamic on every bike I own including my mountain bike. Right away, in the very first ride, I had ZERO numbness. The other unforeseen benefit I experienced was the ability to ride with a much lower stem height. I believe the trough in the Dynamic allowed me to rotate my pelvis more forward and get much lower on the front. With this saddle I have progressively gone from 20mm of spacers under my stem to now riding a 5mm spacer on a fairly aggressive Pinarello race geometry.
You will need to fiddle with the tilt angle a bit as Steve Hogg says ... I bought an actual digital level for $30 just to make sure I had the same tilt angle across all of my bikes right down to the decimal point.