I've read into a lot of these services and took the plunge to try
FTSE Day Trading. Analysis, charts, alerts for IG Index FTSE trading a couple of weeks ago. I notice someone a few comments above said about ftse 100 club moving stop losses during trades, but what I like about the ftsealerts service is that each text has a stop loss and a target limit in the text, so you know where you are. If it's a 10 point stop I know I can trade £4 pp but if it's a 30 point stop I will reduce my stake to £2 pp.
I don't know how you could open a trade using a tip service without knowing the stoploss - that's absolutely imperative IMO.