well got sum tip120's gonna give emm a go ( if i use the drain button for a few secs the whole box fades fizzes and shuts down so may be down to the transistors not being man enough i guess) ...and ordered a couple more solenoids too 
have not tried the sketch change.
but did get a lee filter swatch book lotsa diff gels there to play with 8)
would really like to find sum1 else that has built this and got it all going or just sum1 who has looked through the design and sketch that knows how these things work .. to give ideas on possible problems