My opinion is that if you can get out of the fund you are in on the same day and re-enter another ETF or fund on the same day then you only have brokerage fees to contend with as you are buying and selling in the same market. On the other hand, if it takes 2, 5, 7 or more days to get out of your fund then you leave yourself open to market risk. By that I mean lets say today is day 1 and on day 7 you get your money, the market may have gone up considerably since day 1 and you would have lost a lot of potential gains.
This is me only, but if I am not happy with a fund then I prefer to get out at a reasonable price and if the market moves against me then so be it. I hate being held hostage to something I am not happy with. Good luck anyway.