Stacking can be a controversial topic in many daily fantasy sports, but you can count baseball as a glaring exception. Here, it's universal.

Using multiple players on the same team on a given day presents you with the opportunity to double dip. If one of your players hits an RBI double, there's a good chance he drove in another one of your guys. When you get the points for both the run and the RBI, you'll be climbing the leaderboards fast.

Each day here on numberFire, we'll go through four offenses ripe for the stacking. They could have a great matchup, be in a great park, or just have a lot of quality sticks in the lineup, but these are the offenses primed for big days that you may want a piece of.

Premium members can use our new stacking feature to customize their stacks within their optimal lineups for the day, choosing the team you want to stack and how many players you want to include. You can also check out our hitting heat map, which provides an illustration of which offenses have the best combination of matchup and potency.

As always, Coors Field will be ignored for stacking purposes. You don't need my expert advice to tell you that's a smart play.

Now, let's get to the stacks.

New York Mets

Those Amazin' Mets sure are making a name for themselves. Off to an 8-1 start, the other New York baseball team is white hot, and they will look to continue that strong start against Miami Marlins starter Caleb Smith.

The Marlins acquired the flame-throwing lefty this offseason in a trade that sent Giancarlo Stanton to the New York Yankees. In Triple-A last season, Smith was a beast, posting a 2.39 ERA over 98 innings pitched while fanning 24.6% of hitters. And that's the good. The bad is that after being called up to the bigs, Smith has really struggled with his command through 27 innings. The young arm has walked 16.5% of hitters, and in that small sample size, righties have blasted Smith for a 38.5% hard-hit rate and 51.9% fly-ball rate.

Yoenis Cespedes ($3,800) kills lefty hurlers, and Smith could be in for a long night if he leaves something fat over the plate:

While Cespedes is only hitting .189 on the year, but he's already bopped three long balls. Furthermore, against lefties, Cepedes mashed his way to a 46.6% hard-hit rate and a .321 isolated power (ISO).

Todd Frazier ($3,400) is finding his way on base quite frequently so far this year, recording a 20.5% walk rate on his way to a .385 on-base percentage (OBP). He's been particularly good against southpaws, as he owns a .324 OBP and a .356 weighted on-base average (wOBA) for his career.

The catching situation is a bit murky in New York, but if Travis d'Arnaud draws the start, he's got some nice upside at $2,500. In 2017, he recorded a 30.0% hard-hit rate and a .370 wOBA against left-handed pitching.