Here are some approximate timings based on best guess and google maps
Crieff - 11am
St Fillans - 11:15am
Crianlarich - 11:45am
Green Welly, Tyndrum 11:50am
If you want to meet in Crieff there's two places I could suggest :
1. The Esso petrol station on the High Street, roughly opposite the Tower Hotel
2. Strathearn Tyres on Burrell Street.
We can hang at the Green Welly for folks to join us if need be
We will be passing Strathearn Tyres, and could easily take a wee detour to the Esso station
At St Fillans I like to stop at the layby just outside the town, where the public toilets are - great views, and of course the chance for a wee comfort break!