@ vande:
As far as I know, the difference between 4-digit and 5-digit accounts is only in the price spread, where the 5-digit platform is more precise in its reading, allowing the spread to be less than 1, for example 0.5 or 0.2 etc. While the 4-digit platform spread is at least = 1. In development, all brokers will eventually use the 5-digit platform.
Regarding the method of trading, there is no difference, except that the price setting on 5 digits must be divided by 10 when trading in 4 digits, for example, a stop loss or take profit of 100 pips in 5 digits (meaning 10.0), then in 4 digits it must be made 10 pips so that the final result is the same.