I put it on my boondockers but have yet to wear them in the pouring rain. It has protected them against grass stains and denim stains.
It did not change the color either which I really liked.
No discernible differences in color or feel. I did this at the suggestion of Guy himself. It's the only way to actually waterproof suede (a silicon based spray). With rough out though, you probably don't need something like this. Kudu is closer to suede.
MTO black oil tan Service Boots arrived today. Black stitching, Cat's Paw heal and Vibram sole. Unstructured toe. Straight toe cap. No ankle band.
It's a very flexible leather with more sheen than I thought... Loving the smooth stepping/rolling the sole gives. With the Dainites, I can feel each little nub as it hits the ground unforgivingly.
Now to decide which to keep (3Sixteen's Stealth boot vs. MTO) and which to give to my brother. More than likely keeping the MTO - I prefer less eyeholes to mess with and a more streamlined toe.
A 2-year update on these MTO black oil tans and my 3Sixteen Andrew Specials. The MTOs have been around the world, hiked through snow and are mostly a daily wear walking around Tokyo, Seattle and San Francisco (gave them to my brother), and they've been resoled with some generic crap on the heel. The 3Sixteens have been my almost-everyday wearers while I sit around and do nothing much.