our meticulously planned route was cut short by the weather as early as Sunday morning, ha !

we didn't even make double figures, just out of interest did anyone get close to all 26 GR's ?

There were four I didn't do, but I did do the one that was down with the easting/ northing the wrong way around. Total route distance was 160 miles and 6500m of ascent. I'll post up the order I did them if anyone is interested?

That would be interesting Ian, Spent ages looking at a route and would be good to see a 'good' one

Kevin, here's my route:

Day 1:
02 (Windfarm)
03 (the one out east by Llyn Hir)
01 (fireroad west of Llangadfan, via "private tracks")
19 (NW of Foel, after the bog exit from 01)
17 (Dyfnant Forest)
16 (East of Llyn Vyrnwy)
15 (NE of Llyn Vyrnwy)
Bivvy in woods south of Llangynog (and unknowingly about 200 yds from two dutch guys)

Day 2:
24 (push up to the ridge above Pistyll Rhaeadr)
25 (road north of Llanrhaeadr YM)
22 (Wayfarer track summit)
Missed out 21 - Bwlch Maen Gwynedd - conditions were rough at 22 to say the least
23 (SW of Llandrillo)
Missed out 20 - off B4391 - would have been a 5-6km out and back road trip that didn't appeal
08 (Penllyn Forest, via the high level track over Foel Cedig - one of highlights of the day and the only occasion where the rain appear to easy of to mere drizzle)
14 (northern point of Llyn Vyrnwy, following fast road descent from 08)
18 (western point of Llyn Vyrnwy)
06 (Bwlch y Groes)
09 (Trawscoed - NW of Llanuchllyn, followed by horrid boggy bridleway that should be erased from the map, to regain tarmac)
12 (NE Coed-y-brenin, but only after about 10 mins of wind swept disorientation and refusing to believe my GPS at the road at top of this forest)
Missed 26 (Northern point of Coed-y-brenin - by far too cold and wet at this point (see 09 and 12 above))
Stopped in the Penrhos Isaf bothy with the (same) two Dutch guys - David and Alexander and had a great evening chatting by the fire.

Day 3:
27 (Bwlch Goriwared, Coed-y-Brenin)
10 (Forest above Rhydymain - the northings/ eastings were the wrong way around - the best checkpoint of the weekend actually)
13 (SE of Brithdir - no other tyre tracks seen - was I the only one to do this one? It was a lovely track)
05 (Afon Clywedog - like a mini Doethie Valley - loved it)
07 (A458 - and continued through the miles of forest over Carnedd Wen to 04)
Missed 11 (on road west of Carnedd Wen forest)
04 (N of Talerddig)
Road to Finish.

The route didn't vary much from my plan, except for missing 26 on Day 2 by an overwhelming desire to get to the bothy to dry out a bit. On Day 3 I was going to do a bit of Glyndwr's Way from 04 to Llanbrynmair, but the first section I bridleway I had for this was blocked by windblow, so I went Talerddig and then Bont.

Thanks Ian, will have a proper look later with my map out. We came across that wind blow and it took us ages to get through. We were reverse direction to you so needed to carry on.

I got the 12 I set out to do just didn't do any of the optional extras that I might have done in better weather.

Will add up miles later from gps tracks but 75 ish I think

182 miles for the whole weekend, including riding to and from the start on Friday/Monday. Probably a 60/40 road/off-road split and 13 GRs planned but only 9 actually visited.