Quote Originally Posted by Korsam View Post
I got the BH Auto Foam - it's a great product , works really well with the lance (good thick foam,not the longest dwell time but long enough to work as requested) to soften up crud and I find it's quite economical.I cable tied a small kitchen funnel to the bottle to prevent those inevitable overspills that waste product when using a bottle that size.
The Car pro TarX is another I have on hand - I do find that it needs a little help for tough spots but you can see it work very quickly on smaller,lighter deposits.

HTH
Superb thanks for the feedback, I've gone ahead and ordered the suggestions above which are matching your own personal feedback also. Should have the bits later this week.