Just cut the Springfield top plate to fit the Dicor slide, taking even amounts off each side. I have not done it yet, though have had the components for a year now. A band saw, table saw, or skill saw will do the trick. If you have none of these tools, or are at all daunted by the task, Just take it to a metal shop and they could do it in a hearbeat.
2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln