Only recently joined this forum and spotted your post, on 24th July i actually completed said Welsh 3000 on my own in a time of 14hrs.
Being a glutton for punishment though will quite possibly be traversing this route again in September, either on my own or with a friend, if your still looking to complete this challenge get in touch.
Thanks for the reply, apologies for a delayed response. I did have a partner for this but he had to drop out and we were going to attempt this coming weekend.
Was thinking of knocking it on the head until I saw your reply, due to my rather daft challenge list I have something on every Sunday in September which we count out a 15 peak on a weekend.
Presently thinking 17/18 Sept, even that is a little late in the season. Based on a 6am start Snowdon, and roughly 14hrs (my best) to complete, you would not arrive Foel Fras untill after sunset, and that doesn`t include the walkout.
If you want to complete the challenge this year, you might want to consider a reschedule.
Dave
P.S. also possible for me midweek 12/16 Sept, on holiday !