but eh... i think even if i couldn't do MQB, it'd be easier the second time through, considering phazon suit and the fact that i don't have to do it right after vent shaft
horizontal/ultra bomb jump (iirc about ubj). when it was discovered, it was hypothesized that you could make huge horizontal distances with it... until that was confirmed in geo core, people decided to switch it to high bomb jump. =p