BG REACTIONS

I normally try to start with a BG of 8 or 9 but playing after work sometimes find that difficult to acheive.
Played last Monday and started at 6.4 but by the 4th I was already at 4.4 and had to resort to starting the sandwiches.
I walk much further than other people on the course however...home course is 7,200 yards but I must walk 9000+...zig-zag...maybe you know the feeling!
Regards
Garry