Mortimer or Traditional Slayer?

We’ve all seen the horror posts of people with 40m slayer xp and no imbued heart.

For those of you with 99 slayer, with the introduction of Mortimer, what would you do if you could go back? Would you do the slayer grind at Mortimer or stick to the traditional masters? Slayer points and important non-Mortimer tasks (TDs and DGs considered)

I have 2 zenytes and 2 synapses (super spooned, sorry.) so I definitely need to keep going at DG’s, but I’m worried I’ll have to go significantly post-99 for a heart. What would you guys do?