Need a bit of help. I have in the past used snap-on chemical lights on my rod tip but I have seen other chaps use these bright LED lights. I bought 4 off ebay but had real problems last night and managed to lose two lots of set-ups after the line snagged on them during cast. Surely your not supposed to unattach/reattach on every cast are you? Please can someone let me know which make/model is best to go for and some advice on how to attach the things would also be appreciated!! Many thanks.