steels are significantly more difficult than irons, though. especially at lower combat levels, without rapier, without extremes and super antifire, and without turmoil, they will have a much larger reduction on total average slayer xp/h than they do if you are maxed. however they have better effigies per hour than irons. i wouldn't perm block them because eventually you will want to do them, but cancelling them at this stage might be the way to go, depending on your priorities