my friend ran 2 at 1/2 ohm with a panel over them. they would go into protect for about 5 minutes every 3 hours and start up again. so unless you have them under a panel for more than 3 hours of bump a time I think they will be fine
I ran 3 d4 HX2s wired all parallel for 0.67ohms for a while on a RF T10001bd. It ran fine daily. My bro screwed up and wired one to 0.5ohm once and it didn't last 10min before smoking. Never even went into protect, just smoked.