Hi Sherwin
I have only known one other person get shin splints and he was a very extreme bocker and I believe he had to take a short break while they settled but this was well into his bocking career
My first question is do you mean shin splints as I know a lot of people that refer to pain in the shins as that and are you developing the lumps
Second question is your age as younger folks tend to get them when jogging/running on hard ground (oldies too but not as much)
I would think that you would be far less likely to get them on Bocks as they are caused by concussion and the Bocks massively reduce this as compared to running
I managed to fracture a couple of bones in my legs due to hard ground and bad shoes running when younger but have not had any problems on Bocks
If you do mean just pain in the lower leg I can think of a couple of reasons
Do you tense your ankle joint and try to push your toes down when you run (I used to in fixed feet) this will give you pain in the calf/shin area try relaxing the ankle as it is fixed and you are fighting the frames and won't win
The cuffs want to be tight but not enough to cause pain of cut the blood off try them a little looser
And yes try adjusting back and forward until you are comfy I have my leg almost touching the frame on mine (just get a flat hand in the gap)
If all else fails and it still hurts after a few weeks go see your Doc as it may be something else causing the problem and better safe than sorry
Jason