I don’t think anyone can tell you what is the best DMD for you, it really depends on your circumstances and what you want. Have a look at the MS Trust decision aid: MS Decisions aid | MS Trust it lists all the various drugs.
Have a look through, maybe talk it through with your MS nurse. And whatever you choose, don’t forget that if you suffer from bad side effects, or want to change to a different drug, you can.
asking for the 120mg caps until further notice is an excellent strategy to assist in the event-free building of tolerance of a this ‘beneficial poison’