I talked with a tech down at the local shop about adjusting the suspension on my 12 year old son's 2003 KLX 125. He said to measure the bike's height at the end of the rear fender without my son sitting on it. Then re-measure with him on the bike. The difference between the two shouldn’t be much more than an inch. Well, there was a 2-½ inch difference. I maxxed out the adjustment on the mono and was only able to get a 2” difference. Is the 1 to 1 ½ inch difference right? Any problem with having the adjustment on the mono maxxed out? Thanks!