I got my foams from Kamtec models, and got the following:
http://www.kamtec.co.uk/index.php?pa...hk=1&Itemid=53
These are double width so can be cut to make 4 4wd tyres and fill the rims fully, unlike the singl donunts which leave a small gap. other shore are avaliable but I just went for the softest for my 2wd buggy. Also I did not remove the ribs on the wheels and they seem fine. Also glue with impact adhesive (evo stick) and not super glue but u may already know that.
I also have a spare set of single width 34 shore kamtec donunts sitting in my pit bag which would be happy to sell to anyone who wants them as I will not be using them.
I will be at the club friday so if anyone wants them let me know.