I consider myself a pure glider addict but as many others I have been forced to install electric motor inside the fuselage - size of the field and power guys flying around like bees being the factor. But now the situation is reversed - I am forced to go back to pure gliders - because of the additional cost of electric gear. I just bought a spinner and two pair of blades for my new glider - (cheapest on the net) - 65 bucks including postage! Plus a motor, ESC, battery - it's going through the roof. So I will build smaller pure glider and I will cut a bungee from a truck tube - I did it before and it worked OK. And I will have more exercise stretching the line.