Combine pre 2007 non-tick data with 2007+ data for longer backtesting?

[gangsta1]

As those who like 99% mod quality with tick data know, most tick data goes back to 2007 only (Im using Dukascopy tick data). This means we cannot test from before than with this data as whatever date we set, the test will begin when the tick data does. Does anyone know if it is possible to test say from 2001 and use the standard mt4 data up until 2007 when the tick data starts?

[Simon Gniadkowski]

gangsta1:
As those who like 99% mod quality with tick data know, most tick data goes back to 2007 only (Im using Dukascopy tick data). This means we cannot test from before than with this data as whatever date we set, the test will begin when the tick data does. Does anyone know if it is possible to test say from 2001 and use the standard mt4 data up until 2007 when the tick data starts?

Yes,  why not ?  you can do whatever you like and can do .  . .   is it a good test ?  that is another question.  Why not test with other symbols instead of longer time for the same symbol ?