Glenmore can be hit or miss, but there is some good fishing to be had there. Water clarity varies a lot throughout the year. The key to Glenmore is to find the hot spots. It is also a lot easier if you can fish from a small boat. We filmed a short video from there last year and caught four or five pike in about 2 hours. The water was very clear - just need to sit along the edge of the weedbeds.
https://www.youtube.com/watch?v=8FALBduQRAo&t=4s