Switching salt mixes

I'm considering switching up my salt mixes and I was wondering if this was a good idea. I'm running regular Instant Ocean right now and I want to switch to either Reef Crystals or Kent Marine salt. I don't have that much Instant ocean left so I won't be able to do 2/3 old salt mixed with 1/3 new salt to get it acclimated so if I go 1/3 old salt and 2/3 new salt or maybe even 100% new salt, will it hurt anything?