I suppose it also depends on how busy the roads are and how exposed the course is. If there's a lot of hedge shelter then it's likely the sun (lol?) won't get to any potential ice, however if it's a busy road then there's a chance it's been gritted.
This country can't even keep the roads in one piece during summer, I wouldn't trust gritty gritty bang bang.
@pifko started
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I suppose it also depends on how busy the roads are and how exposed the course is. If there's a lot of hedge shelter then it's likely the sun (lol?) won't get to any potential ice, however if it's a busy road then there's a chance it's been gritted.