The MR isn't really technical, depending on your comfort level. It's class 3 depending on snow fill and up to 60 degree snow or ice. Most people do it with a single mountaineering axe and it isn't a terribly technical endeavor. However, I have seen groups rope up on it for safety, which is a comfort and experience call. There was a fatality in April on the mountaineers route due to a fall, but that was also because the party was descending in the dark.
Be safe, climb smart, and have a great time doing it. Temperatures in the high Sierra are very mercurial, as you may have relatively warm weather and then cold and storms. Not sure which month would be best, but in April we had low single digit temperatures overnight when I was up there one weekend when the previous weekend it barely dipped below freezing.
Hope this helps somewhat!