If you had a gearbox that was set up for sequential shift it'd be OK, if you have a std H-pattern with stock synchros etc it won't make any difference to your shift speed etc. HPI magazine tried it out and whilst it looked flash and technnical, you can't shift gears any faster then the synchro/box design will let you - sequential or non-sequential. So if you had 2K to burn on an essentially useless bit of kit.....