So if vader was kicking dueling droid ass all that time, and we've seen that anakin was pretty nifty with a saber, luke, after a few days training on the falcon and a couple of weeks on dagobah should have been lightsaber fodder. We see the Jedis in the prequel somersaulting all over the place, and Anakin jumping out of 100 storey windows to chase assasins, but luke couldn't even dodge a blaster bolt to the hand on Jabba's sail barge.