I'm wondering how many people find that they can use one boot that works well for both cold weather alpine climbing and water ice. Like most people I assume, I seem to be between sizes and bought my boots a little larger with the intent of using them for alpine climbing (snow & ice), assuming foot swelling at altitude and on long approaches, etc. My boots are comfortable for alpine use, but as I've started to get into water ice and more difficult alpine ice climbing I'm realizing that I might be able to go down a half size, or go to a slimmer style boot, and have greater precision and better locked-in heel at the risk of less comfort on long easy stuff, especially if my feet swell.
Do most people here find that, when they get a really good fit, they can use one boot for both cold weather alpine climbing and for water ice, or do they just accept that a boot is going to be better for one discipline or the other (depending on fit), and buy separate boots for each if they can afford it?