So My next plot hook will hopefully guide My PCs into a sewer, and you know what that means? Knee deep water and slick stones and as a result a veritable underground slip n' slide. so the rules around a steep slope to my knowledge are as follows, Steep Slope: Characters moving uphill (to an adjacent square of higher elevation) must spend 2 squares of movement to enter each square of steep slope. Characters running or charging downhill (moving to an adjacent square of lower elevation) must succeed on a DC 10 Acrobatics check upon entering the first steep slope square. Mounted characters make a DC 10 Ride check instead. Characters who fail this check stumble and must end their movement 1d2 × 5 feet later. Characters who fail by 5 or more fall prone in the square where they end their movement. A steep slope increases the DC of Acrobatics checks by 2. A wet surface increased the acrobatics DC by another +2 however my question is how do they slip without charging or running? and if and hopefully when they do can they only slide a max of 1d2X5ft even though the surface is slick?
Rather than try to calculate climbing, why not equate the area covered a foot deep in water with a slimy stuff as being a grease spell. Slow movement equates to the double square penalty. Adding a +2 to the DC for being sloped is fine also. As to sliding, you are going against standing water, so a short distance is fine. To get a far distance, you need some kine of sloping chute.
/cevah