Scalping VS Slippage

I have developed a scalping EA that 'should' work. In fact it should almost every time according to my code that handles open\closure detection. However I have a fairly large issue. Almost 90% of all of my opens and closes slip... and push the trade in to loss. I was surprised to slip more than 1-2 pips, if at all.

I have tested it on the demo system for MIG, Alpari, ODL, FIBO, KVB, Straighthold and Interbank.

Is there any way to minimize slippage? I put some timing code in my EA and found that there is only 250ms between the tick arriving and the OrderSend but I'm seeing slippage of up to 20 pips in some cases.

Does slippage affect scalpers in this same way?

What is your "slippage" setting in the order?

99. Because this is a part of a hedge trade it's not an advantage for one side to trade and for the other side to open at a different rate due to being requoted, which would probably delay the open even more and drive up the real slippage.

If I set that to 0,1,2 or 3 it would just be 'off quotes' wouldn't it? I call RefreshRates() before I place the order so I know that my client is working with latest data... that it knows of anyway...

HA! In Replying to my own thread I noticed that our awesome related treads list at the bottom of my thread has some very interesting information in this thread:

http://www.forexfactory.com/showthread.php?t=52762

I've never really seen the purpose of limit orders! So... in my system I guess the limit order decreases profit by say 2 pips (1 for each side). I'll test this out and see how I go...

If anyone else has any idea's on how you might be able to place trades at very exact prices I'd love to hear them. Seeing a system that took me 3 months to build (coding until 2am EVERY night) fall to pieces and due to something as simple as this is heartbreaking...

"Instant Execution" with an invitation for the dealer-enemy to "slip" the price up to 99 pips doesn't seem to be too good an idea.

"I've never really seen the purpose of limit orders! "

On a commission-based broker, limit orders can be used to try to avoid payng the spread... Buy at bid and sell at ask (by taking someone elses market order)...

Also, limit order will be filled at the limit, or better than the limit (probably rare with the dealer, not so rare with a broker) or not filled... in which case you can try again, or move your order.

---
Myself, I still don't really understand the allure of hedging, except in trying to capture interest payments. "Look! I am up 50 pips! And I am down 50 pips too!"...

Wha?

lol