A minor word of caution regarding the Strikemaster. Being a war machine rather than a trainer, some of the student-friendly features of the JP5 were not included. The Strikemaster spin can be unpredictable and has resulted in a number of ejections (or worse) over the years. The JP5 has spin strakes and roughened leading edges and is much more docile when spinning (I know a man who did a twenty plus turn spin in a '5 just for the fun of it). The JP3 and 4 were also docile in the spin as long as you didn't still have fuel in the tips.