Hi-yield investments in taxable account -- crazy?

[Urchina]

Is it crazy to put high-yield investments in a taxable account if you're still 10 years out from FIRE?

DH and I are finally opening a taxable brokerage account (probably with Vanguard). In theory, I understand the logic of putting only tax-managed funds in a taxable account, but since this is the account that's going to act as our "bridge" from when we RE until we're at standard retirement age, wouldn't it make sense to have some income instruments in there? And since we're starting small on this account (just $250/month until we get our HELOC paid off), we'd like to make wise choices we can stick with for a while.

We're currently in a 28% marginal bracket (federal -- I can't remember our state bracket but we're in CA) and are maxing out our tax-deferred accounts prior to putting anything in this bucket. We've got our emergency fund up and running and will be adding it as we go, so this taxable brokerage account is for long-term money only. This past week has proved to us that we have the nerves of steel required of those whose equity/bond allocation is in the 90/10 range (though we're considering a 80/20 split due to the discussions on similar returns with less volatility).

Why can I just not wrap my brain around the reasons against income producers in a taxable account, especially when you're going to be using that account to generate 12-15 years of income? I'm trying to battle any mental irrationality I come across, but right now I feel like I'm trying to hammer a lag bolt into my brain with a toothpick. I've been doing my reading, too -- help!