To divide or not to divide?

[mexicowpants]

Had this Catasetum Shawna Austin "Fanfare" for a couple of seasons now. The first season it produced 3 new bulbs, all of which spiked; 2nd season it threw out 5 new growths, of which 3 matured and spiked. This year, it's thrown out another 3 new growths.
I'm just a bit concerned about it right now though, as it seems to be effectively growing on itself -- it has a LOT of very shrivelled up old PBs, and I'm worried that this might be impeding its growth a bit (I remember reading that Catasetum should ideally be kept in small pots of between 3 and 6 PBs).
Would you guys recommend dividing this plant, and removing the most shrivelled of the old PBs? Or would it be best just leaving it as is, and for nature to take its course? If division is the way forward, how should I proceed?

Cheers!