Without potions, the only change I suggest is:

HT>[BL>B4B]>ID>[IR]>Dis>[BotD]>CT>...

It gives you more leeway on BotD while keeping everything else going nice. Another alternative I've been looking at/considering
(which *should* be higher pps, but I haven't had time to test it to know for sure yet):

HT>[B4B]>ID>[IR>BL]>Dis>[BotD]>CT>...

If you wait ~1s on popping B4B to get the 9 hits, you'll also then get 9 hits out of BL (the 8th and 9th hits being a 4th hit and Heavy Thrust, both of which are missed by using it right after HT)

Either one of those should work well.