I have, on a few occasions, where an aircraft geometery or controllability problem was suspected, preformed high speed taxi tests, with planned hops, with full flaps extended. Though not an "approved" procedure, the ability to get off the ground at a lower airspeed than "normal" has offered me a glimpse of how it will handle when going faster. As no departure from the runway (or even ground effect) is planned, the requirement for suitable climb performance is not a factor. I have never regretted doing this, and a few times wished I had, when I should have!
I accept the reality that this technique may not be appropriate for many types, but for most single Cessnas, and other similar "low speed" types, I have found it a ressuring basis for the flights to follow.
Pilot DAR