My guess would be the Coopers Canadian Blonde is slightly more bitter than the Brewhouse premium American lager (aka Budweiser). The beer is still young. The flavors will mellow with age.
Try releasing some of the gas from a couple of bottles and resealing before putting in the refrigerator. It doesn't sound like you bottled prematurely but it is worth a shot.
Your beer is still very green. The head will improve over time. For best results wait at least 3 months.
2 cans of the beer kits would double your bitterness. If you are after an American style IPA 2 cans of the Lager beer kits with a small amount of dextrose would work. You would also want...
Just to let you know. I sell Coopers kits.
It is not their intention to rush people out to buy more kits (although, naturally they want people to buy more kits) by giving directions which appear to have short time lines. The seasoned brewer will ferment and consume when the time is...
I prefer the Saaz over the Willamette with that beer. It is proving to be a great summer session beer (aka lawnmower lager). I don't know what hops Sam Adams uses. Willamette tastes earthy to me -- perfect for English ales. Are you thinking of using both?
It's up to your palate!
Have you ever tried the commercial Coopers Best Extra Stout? I think it's an awesome stout. Here's the recipe from the Coopers site.
Best Extra Stout (20 litres)STEP 1: Mix
Our commercial Best Extra Stout is an outstanding beer, hence the numerous awards. This recipe is an approximation to...
My last DIY brew (the one that comes with the kit), the carb drops took only a couple of days to work. It's been 2 weeks now and the head has those real soft bubbles now. I dry hopped with an oz. of Saaz for 5 days. It turned out real nice. Much better than I expected. I can see making that beer...