I thought it would have been to everyone's advantage to fly as accurate as possible.
What's the point of just bimbling around at any old speed. As said above, if the book say 92kts, then try for 92kts, accurate
timing and naviagation.
After a while it should become second nature and makes the step up to bigger, better things much easier.
BTW, what's a cross country "circuit"?
GA