If you are consuming a full serving a day of Promax Extreme daily then you will be having a daily intake of 5grams of creatine so if this is combined with one serving of cell-tech ( 10g creatine) then you will consuming 15g of creatine a day which is acceptable.

If you are past the loading phase of 20g of creatine per day then you want to try stay around the 10g mark of creatine for a maintenance phase, simply because if your creatine stores are full then any excess creatine is simply excreted.

If you are trying to get lean, then a product recommendation would be quite different than if you are trying to build muscle (the first requires eating more calories and the second requires eating fewer). You have to decide if you want to gain or lose!

If you have a fast metabolism, have trouble building muscle or a pretty poor diet (you don't eat at least 5 or 6 times per day), then you are better off with something that has more carbs and calories, like Muscle Fuel Anabolic, Mutant Mass, Mass-Tech, etc.

After you've loaded you creatine, you should take 1 to 2 5 gram servings per day so 7 or 8g is fine.

Maximuscle products always carry a premium price and it's up to you to decide if they are worth the extra money.

Promax Extreme contains ingredients beyond just protein (such as creatine, NAC, etc), so it will have greater effects than Whey Hardcore. However, MuscleTech also do Nitro-Tech, which also contains creatine and several other ingredients to improve muscle pumps and insulin function. This product has scientific several studies to back up its ingredients and is one of the best-selling protein products in the world.

They don't list the amount on the tub, so it is proprietary information that the company will not divulge.