I'm getting ready to install koni yellows on my crx and the bump stops I have don't stay at the top of the shaft like there suppose to. Is this a problem or will it be fine with them resting at the bottom of the shaft. The bump stops are being reused off of some tanabe sustec pro coilovers that I removed off the car.

 

I think you will be fine. The different struts must have different shaft sizes. I would just use what you have until you can get the correct ones.

 

Doesn't matter, they're just there to keep the piston rod from bottoming out internally when the shock is at full compression. As long as it's there in between the shock body and the top mount, you're fine.