what makes you think riding FRAP doesn't include taking the lane? it assuredly does.FRAP for a bicyclist can encompass nearly any road position including over the center line for safety (if a car is pulling out of a parallel spot while violating a bicyclists ROW, for example) or to the left of a very wide lane, if further right is not practicable. What happens when the road speeds go over 40mph again?

AS to the OP's 'dilemma.' yep, i don't move for honkers. but i also position well left to allow right turners to turn and will split lanes and sit on the lane lines at a thru cars right bumper or even in the lane and ahead a little. sometimes a virtual bike box happens to be created by virtue of the advance stop lines (Market Street in San Francisco has a lot of these, and they work in the bicyclists favor) and use this space for destination positioning if available and convenient.