Good advice. 4 Flameout is giving you about 3 grams of DHA + EPA, while it takes 10 fish oil capsules to get your 3 grams of DHA+EPA. Also regular fish oil has more EPA than DHA, which is correct for women, but men need about twice as much DHA than EPA (about 2 grams a day).
So 4 Flameout is giving you a full 2.2 grams of DHA per 4 capsules while regular fish oils give you about 1.3 to 1.6 grams of DHA per 10 capsules.
3 grams of DHA+EPA with about 2 grams of DHA is ideal for a man on about a 2500 calorie diet as long as omega-6s are kept to a minimum (6-8 grams a day) which is very hard to do, but possible.
NOW a key to understand is that Omega-3s are probably the most oxidatively damaging fatty acid that humans need to consume (essential). Omega-6s are next. Fortunately if Omega 6s are kept low, omega 3s are optimal at only 2-4 grams a day (2500 kcal diet).
If you eat 20-50 grams of omega 6s (like many Americans), you need to keep your Omega 3s at least in a 1:4 ratio. In other words you have to consume more "toxins" to offset the effects of other toxins that you took in higher doses.
Regarding fish oil: Omega-3s are clearly essential at about 2-4 grams a day, so I'd rather get them from a purified and concentrated source than an impurity loaded and less concentrated source.
There may also be some reason to consume your weekly Omega 3s in 2-3 days, rather than every day because your body will burn some as fuel. There is always an equilibrium and turnover of cellular fatty acids, but a higher fraction will get burned if you consume them on a low calorie diet, and in lower doses. Omega 3s taken on a calorie restriction are mostly getting burned. Omega 3s taken on a maintenance calorie diet will replace cellular membranes slowly by equilibrium forces over time (most get burned, but some will replace recycled membrane fatty acids that get burned). Omega 3s taken on a calorie surplus will tend to get stored as fat, will be released in equilibrium gradually, and will be released fast if calories get restricted.