It all depends, some strains have the dominant genes and some don't. Also depends on the stability of the genes...too many factors to say for certain. Welcome to the wonderful world of breeding.
A little off topic but if both strain are stable then you will have f1s which show uniformity. Who knows what you will get with those two strains though, also if you do it and grow them out pisk a nice one and "mom" it. Good luck, also I am by no means even close to an expert on breeding although I have had some nice surprises, like the Mind Flayer (I give them cheesy names) and in my gallery is the Broad Street Bully, I haven;t gone too far with them but I consider them slight successes for now LOL.