I have one extract batch of Belgian ale under my belt, and it was good at 6.5 ABV, but I'm shooting for closer to 9%. I plan to add a couple of pounds of Munton's light DME and some honey to the next batch to increase the OG. The first batch was fermented with SafeBrew T-58 dry yeast, and the esters were very nice, but I question it's ability to tolerate higher alcohol content.
I have obtained a vial of White Labs 099 Super High Gravity yeast. My question is can I use the T-58 yeast initially for the esters, then pitch the high gravity yeast after a week or so to complete the fermentation. Or put another way, will two different strains of yeast "go to war" with one another? I'm shooting for something similar to Victory Golden Monkey (9.5%).