This sounds quite a lot like the goal I set for my ship (
Subject: Peticks ship log, rank 610 and counting ) , although I plan on having enough room for all scan, or all cloak, or all % and ability mods at any one time. So float around with all the % and ability buffs for normal day to day but when going on a scan run switch up the setup. Saves at least a thousand decks I would think. Though, when your ranks high enough eventualy your ssb cap will be such that you can go full scan, cloak and %/ability mods. Essentialy though I wouldn't say that if you aim to have all scan cloak and bonus mods installed that slow ranking would realy be that big a part of it