Hi all - Since choosing no longer to be a guide dog owner, the GDBA have supplied me with a long cane [Revolution with roller tip], but now that I need a new tip, they say I have to fund my own, or try social services. I've just looked at the RNIB website, under long canes, and can see my Revolution cane listed. Firstly, I assume I would be charged the VAT free price? and secondly, can somebody tell me about the different tips for this cane? I can't quite figure out the advantages of one over another, like I say, I have been using the roller tip, which seems to have good durability for street work, what are the pros and cons of the other tips over the roller tip? Thanks for any help - Andy