What defines a scalping-friendly (and unfriendly) broker?

What exactly makes a broker good for scalping?

I can only think of the following:

[ul]
[li]Tight spreads
[/li][li]No dealing desk (NDD) - straight through processing (STP)
[/li][li]Low latency
[/li][li]I’ve noticed some brokers only allow you to set stop losses (SL) and take profits (TP) at least e.g. 5 pips from the market price, so this is no good for scalping
[/li][/ul]

When a broker advertises its scalping-friendliness, is it just a marketing tool that factors in the above?

Anything else a budding new scalper should be aware of when deciding on a broker?

I would add reputation. You should always choose a regulated broker.

This scalping system is a trend breakout system for intraday. This is based on the king trend detector and king’s cage indicator. The essence of this forex strategy is to transform the accumulated history data and trading signals. Letting the people to take decisions with convictions.