The 632 holds up to 230 g; the 633, up to 350 g; the 634, up to 450 g; and the 638, up to 650 g. Fuji guides and the T-DPS reel seat complement a handle designed for underarm casting.
The right power rating is one that delivers the proper impulse with the actual jig being used and the tension created by the drift. Then let the lure move naturally as it sinks. The maximum jig weight applies to vertical retrieves; it does not indicate casting power.