Ok, I know that's a little wierd but I was teaching myself how to play Parabola by tool and in the prosses I ended up tuning my 5 string to FBEDG. Justin tunes his bass to BEDG in this song and uses Ernie Ball hybrid slinky strings and swaps out the 105 gauge with a 110 gauge from the power slinky set. He either uses this tuning or drop D so I'm guessing that's why he doesn't go with a lower gauge string. I wan't to know what gauges I should get in order to basically have a 5 sting version of his. Should I just get a hybrid slinky set and use the 135 from the power slinky 5 string set? Or something else to make it sound cleaner?