I find in judo fights that it is a lot easier to score by tripping rather than throwing. Most of the throws are hard to perform and land successfully, but i guess this is down to timing and skill, aswell as linking them into combinations. Anyway, I think it is more practical and probably easier to trip with an osoto gari or similar. Groundwork is good too, love the armlocks, kinda makes me want to learn ju jitsu...