Apart from your appalling mis-use of an apostrophe, and your lack of understanding that the plural of the things that grow out of the ground is also bushes, I find myself agreeing with you Brian. Bushes should be precise, otherwise what's the point in having them. Having said that, precision costs money. So would you rather have some sloppy shite out of China for a couple of quiid, or would you rather pay a bit extra for some nice ones that fit the tubes properly and are give you the correct finished sizes?