If you are short on time Ae is best due to having to negotiate Dumfries and the various road works dotted about town causing chaos 🙄 pot luck depending on what time you hit town.
Ae is nearer A75/Moffat, could be another 1/2hr added on each way if you go to Mabie. Lots of mobile road blocks(tractors)around to add to the roadworks chaos.
Might take a wee bit longer to get round Ae but that’ll be offset by the extra time taken to get to Mabie and back out again towards Moffat and passing by Ae!
Being my local trails I like and ride them all, mostly Ae atm.
Ae is a bit shorter than it used to be, smoother(surfaced)in some areas and rougher(washed out)in others.
Not been to Mabie recently so can’t comment on current conditions and rarely do the main route 😉 Think there is still a diversion on Elevator due to either forestry works or the trees the we’re blocking the trail may not have been removed or trail repaired?
I’ve got a day off on Mon, all week actually 😆