Wise move, LowNSlow! trouble is most power planes are "poorly fenestrated" compared to gliders, which (except for the old warhorse K7) have excellent viz all round, but not that great if somebody is coming up from below and behind you, which is what the RAF tutor did to the glider in the report now revived on this forum.....the glider pilot could hear the engine, getting louder, but couldn't see it - he had been flying straight and slightly descending, between two thermals, when he was clobbered and had to hit the silk....
Poorly Fenestrated is what they told us at a safety meeting at Upper Heyford to explain why an F4 might not see you circling overhead....