Your Scythe set is pretty good considering your not 75.
* Heca or AF+1 would be nice additions when you get them (or are high enough to ware them).
* Brutal obviously when reach 75.
* Bomb core (or bomblet) are both better than RSE.
* HQ Hauby is a nice addition
* Look at a 501 scythe (perdu or moli)
Other than that you need to finish of your merits and make sure you eat attack food or pizza (depending on mob).
With the 'right' exp buffs your guillotine will average better than spinning slash.
And /SAM where possible.