Chances of this happening: miniscule
I have a slider on my 6A. And I like it, but I sure like the view out of the tip-up on my friend's 7. However, I had an incident two weeks ago that made me glad to have a slider on mine.
On a recent very cold day, I was doing run-up prior to departure when the right brake failed completely, putting hydraulic fluid all over the ramp. It was a half-mile taxi back to the hangar with only the left brake, while the right rudder worked when against the wind. A couple left turns and I found the wind at my back, rendering the right rudder useless. In my "smarts" I had failed to account for this tailwind in the last turn to the hangar. The result was the airplane continued to drift left at about 6-7 mph heading directly for a row of hangars. There was no grass to slow me down.
I pulled the mixture, switched off the ignition, undid the seatbelts, opened the slider, pulled myself out of the cockpit onto the wing, dropped to the ground, grabbed my step-up and stopped the plane before it ran into the hangars. The adrenaline was running. The plane stopped 3 feet short of a propstrike. I've never gotten out of the plane so fast and I'm not sure I could have done it in a tip-up. Maybe, who knows... but I'm glad I had the slider at that time.
FWIW