Trouties light are great, but his Mini is no brighter than a MJ-872 and cost double the price. I’m not knocking him, I have one, but simply being realist about the cost.
Not everyone has £200+, and when you can get a unit for half the cost to do the same thing it’s awkward to justify the extra…
Your MJ-872 doesn’t sound well at all though, a friends 872 works on full for ages without issue, and this is the downside. Depending on where you bought it from, fixing/returning it can turn into a lengthy process especially if you bought it from HongKong. Hopefully you got it from one of the UK ebay sellers – they sound quite good with returns/issues. A quick guess would be that it’s overheating is causing it to switch down modes, so you need more thermal past from the headsink to the outer shell but you may not have the paste or be willing to open it up .
[Edit:] As for your “not quite the be all and end all that some would have you belive” comment, I would throughtly agree but they are fricken great lights for the money and simply is what most ppl are interested in.
Where Trout really excels IMO is being ahead of the game, by producing lights which no one else is producing… see his Dominator & spider lights, they look to be beyond awesome.