Slaphead, I have fished both LlynY Gors and Tyddn sargent several times , Llyn y Gors has been badly neglected over the years and the last few matches I have fished there we really struggled ,the place was also full of Rats ,I understand that new owners are now in place and are doing some work on the place ,will have a look in the spring when I Open up my caravan. Tyddn Sergeant is a good little water and you can knock up a good weight of skimmers/roach on the pellet,the only problems are 1 its very shallow and not enough pegs as its only 2 sided and the far bank is a farmers field. I have found a cracking water called Llyn Blodyn, its at Lligwy beach just after Moelfre its full of hard fighting carp ( simmonds ) also full of silvers, its £8 a day and in a stunning location overlooking the beach thats unless your on the dam wall then you will have your back to the beach. I also travel to Criccieth and fish Bron Effion and also Eisteddfa fisheries, Bron Effion is a fantastic water stuffed with F1 s Mirrors and Ghosties and thousands of silvers,at times the problem can be getting through them to the carp ,I would never take maggots to this water because as soon as they touch the water they are taken,There are some seriously big perch in this water and 3 years ago I had one out at 5lb 10 oz ,It took a grain of sweetcorn as i was fishing for carp. This has got to be the best day ticket water in North wales. Eiseddfa is on the road out of Criccieth heading to Porthmadog. Its got a match lake with a good head of fish but nothing like Bron Effion, its also got a specimen carp lake and Trout lake , Ive only ever fished the match lake but had some good results.