Hey guys. I am swapping an arione for a specialized Romin Evo. The saddle placement and height have been measured out and set by my fitter. I am pretty meticulous and would love to find a way to preserve the overall fit and measurements with the new saddle. Do any of you have a sure-fire method for figuring out where the new saddle should (for/aft) go and whether I need to do anything about the height?