When I started my PPL I had several different instructors at the beginning and felt like I was going backwards. Each was right but they all had their own style of doing things. I managed to go with just 2 different instructors in the end and this was much better for me.
The person who takes you for your skills test is only allowed a limited amount of training time with you, something like 5 hours or something ??????
The guy who took me for my skills test was one of the many instructors I had at the beginning. He was far more strict about minor things than the others so I avoided training with him as he made me feel totally useless if I didn't do things his way. Needless to say that when the skills test came and I knew who was examining me I feared the worst. The fears were unfounded as he was far more relaxed and I actually enjoyed it in the end.