is ther any need
That particular one - probably not. The adjuster looks next to useless, and is the same as a lot of the cheap Ebay controllers. I fitted a very similar one as a stopgap before I fitted my old GBE Mk1, and no matter how tightly it was locked off, it always came loose, to the point that eventually, I put my foot down and the adjuster blasted off into the great unknown! :D Not to mention it's more than likely not up to the kind of boost us dervheads tend to require.
A decent controller such as a GBE D-EVO comes very highly recommended though. You'll find a fair few on here (including me!) who have them fitted
^ second that gbe d-evo all the way;)