I shall be at gaydon without a stall , i can show you these up close and take orders .
http://homepage.ntlworld.com/mj.slater/allyboost1.JPG
http://homepage.ntlworld.com/mj.slater/allyboost2.JPG
http://homepage.ntlworld.com/mj.slater/allyboost3.JPG
Prices are £39.99 , and £64.99 for dual stage version(bolted together)
these can be mounted to bulkhead and controlled with a remote control adjuster cable .
contact on the day 07961 973382
Regards dave