Hello, Eli. I did the Colorado 14ers in the 90s, all in summer or fall. I’ve also climbed all over the Sierra. We should speak the same language.
When the Mountaineers’ Route is dry, it involves a lot of class 2 and 3 rock, with the “Final 400†being solid class 3. It’s probably no big deal for you. In April, there will be a lot of snow, and you may find ice on the Final 400. You know better than I do whether you belong on snow-covered class 3 rock with boots, crampons, and an axe.
Snow conditions could be anything in April: mush, breakable crust, firm pack, a little powder on top of whatever is underneath, all of the above, etc. Ben is right. You don’t want to start up late in the day, when the snow could be mush. On the other hand, this is a relatively dry year.
Here is a trip report from April 2019. I hope this helps. Post again if you have specific questions.
