Ghengis,
One of the apparently unnoticed statistics recently discovered is that over the period 1980 - 2006 there have been
10 stall/spin fatal crashes in C150
1 " " " " " C152.
In this period there were many more hours flown in the C152, making the apparent risk per hour about 16 times greater in the C150.
On these numbers the difference is hugely statistically significant, over 99%.
The tragic death of a teenager on second solo at Southend last year was in a C150. Over the 27 years analysed, there was a total of just 4 stall/spin fatals of solo students on all types, but 3 of these were in C150. The other was an AA5.
Needless to say, very serious study is now being made of the reasons for this difference.