Just curious for any long-term or much-used feedback on lightweight barrels. Am about to pull the trigger on a Daniel Defense M4V7SLW (14.5" w/M-LOK) but it's only available with their slim profiled barrel. I've always been a bit wary of "pencil" barrels and have always opted for standard or government profiles but in this case I don't have a choice if I want that specific model. It will be used for training and carbine classes as well as home defense. What say you? I'm aware they tend to heat up quicker but how much does this affect accuracy and/or POI? Thanks fellas.