yes mind flay and mind sear last tick not overlapping like dots in freaks and this is another problem.
but with talent solace and insanity :
mind flay(insanity) 100% damage done decreased to regul ...
WoW Freakz spell link: https://www.wow-freakz.com/spells.php?spell=139139&name=solace-and-insanity
Bug description: solace and insanity
This talent should when priest began to cast mind flay cal ...