Yes. Even with 3 recharges and hasten up, there will be a 30 second down time, probably more considering hasten crashes before hastened+3 SO recharge AM is back up. So on average you could be looking at over a minute of downtime, and if you need to fight during then you're in trouble.
/rad is rather end heavy in my experience. I wouldn't even think of it without stamina.
thnx for the input 
do u need it? with hasten and 3 SO recred in AM will it even be nessisary?