A bit late i'am afraid, (just got home)
I'am planning on doing a shorter flat route to the blackshed tomorrow......leaving winterbourne co-op 9.30 (meet royal raj) route as follows sorry no Garmin at present.
Head out through Thyerington........Cromhall......Tortworth.......Damery.....Berkeley.....across the moors to the blackshed.
Any takers please let me know,i may abandon if know interest.