how it sounds, everyone is fully satisfied with those hammers....I would like to use those to see/ feel the difference. I just have a 10 bucks hammer in my shop
brushless sounds good - but they should also add a vibration control system in it like the Bosch RS428 im not quiet sure if it would interfere with the battery life
oh and of course the sharpening jig - just have to find the time to drive to the store, its a bit further away the sharpening service is not bad at all - 20 bucks for a 80T blade
recip saws are mostly for demo work - so it doesn't matter if you have more saw dust.... specially with this dual saw....and I don't mind having more saw dust in my shop....