Northern Ireland and to a lesser extent Scotland, have high concentration of 1 territory bonuses, which make those regions extra strong.
This map is not balanced for a fair strategic game and bonus icon placement make it hard to identify where the bonuses exist and what bonuses they border, as result playing on this map can become slow and tedious. There are too many bonuses to remember them all well, so players will be forced to constantly check the bonus icons, which takes away from the gameplay experience.
For this map, I wanted to include as much information as I could (hence the large volume of bonuses). I sympathise with the bonus icon placement, but when developing, I couldn't accurately place them without interrupting the hexagons.
However, in line with what you have said, I have been developing a second version of this same map with reduced bonuses which are more balanced. Hopefully that version will detract less from the gameplay experience.
Thank you for reviewing, and please do so again if there are any other suggestions you may have!