Or follow with a faro check and get some practice on that as well. This way you can complete the shuffle from time to time and prevent the deck from naturally breaking at that point.
Also, compare visually and adjust. As recently discussed with Bill Mullins, adjust and move a crd from one half to the other until you are willing to bet $1000 that the split is perfect. Keep in mind that if you're off buy one, there will be a difference of two 27/25. I have had my non-magician brother try this and he was eventually able to decide when it's 26, without practice.
To help make this adjustment at the moment of splitting, you can look as you split and pull one more card with one of your thumbs. To be able to do this equally well with both thumbs, you can double-bevel the deck slightly before you start. Hold the deck with your left middle finger and thumb, from below, at the centers of the sides. With the right hand, hold the deck by the ends. turn the right hand slightly clockwise to double-bevel the deck, very slightly. You will find, when splitting, that if the right hand is taking one card less than it should, the right thumb can easily pull one more. When it takes one card more than it should, then the left thumb can easily pull one more.
The more different ways you try to cut 26 the better to get the feel. You might even try to eliminate the comparison factor by putting, say, 50 or 60 cards together and trying to cut 26 off the top. Whatever happens, trying to guess how many you cut and then checking, will sharpen your skill.