simoburn clearly didn't have the luxury of a second car. Nor did he have a bike. So he simply took a hard left at Coombane, and took a "short cut" home around the Rabach's Glen. The whole thing took him less than ten hours. More than 40 kilometres: 2370 metres of ascent. Phenomenal! Faced with the reality of simoburn's extraordinary feat, I decided to forget about the linear walk and get on with my life, until Good Friday 2016...
My Experience
Drove down to Ardgroom from Meath late Holy Thursday. Slept in my car by Glenbeg Lough: plenty of parking. Spookily romantic under a big moon but constant fear of axe murderers peeping into my car and beheading me. Picture postcard georgeous so could get busy in holiday season. Up before dawn Good Friday: deposited bike at Healy's Pass. I fgured that a pre-walk bike ride might wreck my legs and ruin the day.
Hard to find a hidey hole for the bike as there's no vegetation at the Pass so shoved it between two monster rocks. Drove back to the lake.
Set off up Lackawee shortly before 7am mindful of promised rain belt coming in from the Atlantic. Cloud down to c350 and howling south westerly gale made progress difficult.
This is a three part route.

Part One: Lackawee to Maulin. Plenty of ascent straight off but gradient reasonable. Ground conditions varying from grassy to boggy. No particular obstacles.
Part Two. After you come off Maulin you enter a world of chaotic rock formations, with big vertical slabs popping up all over the place. This remains the case until you ascend Hungry Hill. Really beautiful wild place. The absence of visability meant that I could not "read the landscape" i.e. I had to deal with all obstacles as immediate problems one after the other, instead of being able to plot a sensible course over a big distance.

Visability would greatly help here.I already know from Rabach's Glen that the views around here are stupendous, and indeed I had fleeting flashes of them. So let's hope you get them! The final spine up to Hungry Hill signals the end of chaos, and the route to the summit is well trodden.
Part Three. From Hungry Hill to Healy's Pass is a pure walking pleasure on a wide ridge affording super views.
Very easy comfortable walking and a great sense that the work had been done. Glanmore Lake framed by the Cahas with the Atlantic in the background is magic stuff.

I enjoyed freewheeling down to Lauragh from the Pass but one of the pedals fell off en route to Ardgroom and thus began a long and painful walk back to the car.
Summary. A truly magnificent route perhaps best saved for a summer's day with guaranteed weather. I loved it.