the lump running could be cause by some moisture in the coil pack or dizzy cap see if there are any cracks etc on the coil pack ... and the dizzy the price they are just replace the cap and rotor arm .....
got one of then the battery one lol but is one of th etop 5 tools i have ever brought ... also got a crawler board that looks like a bucket seat that cost me £150 lol
dude get halfords stuff life time warrnety pretty good and good selection of tools .... snap-on are good but £££ £200 for a set of standard spanners ..... and they still can break trust me i know lol
the big coolbox well defo be coming with me ..... as fro tunes as gary said is very musical there wau or me, craig and monk will be singing lol martin ill have a look at routes and get back to u mate as soon as ....