While giving bsd a wipe over and puting the buildings ect back in after play expo I decided to make an improvement. This has bugged me since I've owned it. The poxy pathetic spring on the left gate. The original was all stretched and abit gutless so when I stripped the machine I got the correct replacement thinking the old one must of been wrong. But no the size of the spring means you have to over stretch it to get it to work. It always barely raised it. So I've replaced it with a length of about 1mm copper wire and now it's perfect. Took 5 mins and prob cost less than one of the ****ty springs so the ball will no longer occasionally roll out.