Thanks Mark---looks very full value at 220km too
Not actually 220km, but with the demise of Wormlow Tump, I have been made aware that there's an alternative route to Allensmore. this would take the route to 208km - which is within the +5% BRM tolerance.
However I haven't had time to fully RA the alternative. I do know that it's all A-road (A438 then A465). For what it's worth, in 2004 I removed this bit of the A465 from the BCM 600, as I wasn't happy with the "rider safety" aspect on parts of the A465.
However I would hazard a guess that the original route to Wormelow Tump and then the Allensmore out/back wouldn't actually take any longer in terms of time.
Why? Well, you'll have to negotiate some roundabouts and about a dozen extra sets of traffic lights to get through the A438/A465 route. the combined reitterative process of slowing/stopping/waiting/accelerating will zap maybe anything upto 15 - 20 minutes.