Originally Posted by freeBatjko

Apart from the valid hints that no fighting stance should ever have straightended legs... I think what you need to realize is that most established styles have parts that work for you and parts that don't.
For example: Taekwondo obviously is famous for its foot work, so it makes sense to listen carefully when they explain why they do this and that with their legs in stances and techniques, and you should ask your teacher why that is supposed to be better than what you are used to.
It is vital for you to understand what the differences actually are. Only then can you make a conscious decision as to how you should alter your own techniques in order to optimize them.

One important rule: When you switch from one style to a different new one, don't make the mistake of chosing one over the other. Learn as much as you can from the new one, but don't forget what you've learnt from the old one.
Try and add all new - while preserving the old...
Find a good balance, combination or compromise between both.
You don't want to have wasted those two years in Kempo, do you?

-free-