I dont know if this helps or not, but I have one on my outlaw/250R geometry shee. Its a 250r style swingarm with a no link setup. The bike is built for MX racing. The rear shock is a quad rate Elka and the shock body is long as hell. There is a tone of free sag and travel is about 13 or 14 inches from what i can estimate. It is very plush the first few inches and the progression is great changing to very firm the last few inches. It is the best rear suspensiion I have ever ridden on (best front too) and handles EVERYTHING you throw at it. I have a couple of pics that show it. You can see the top shock mount is MUCH higher than stock to allow the long shock body. I guess all I can really suggest to you is that with the right shock spring rates, valving, etc and the right frame geometry to use it then its awsome. On a stock banshee frame with a stock length rear shock, I'm not sure it would really be that great for anything beyond drag racing like 87sheerips said, but I could be wrong as I have not personally tried it.