I think this could have good potential in the current metagame. It is a strong list, but there is one card I was wondering about:

Null Brooch.

It has been discussed here on TMD before, and I think it could work well if it could be fit into the deck. It would give you an answer to Flash, by making them have to find the kill and a way to bounce your brooch, giving you time to get down lock pieces or find another brooch for welder tricks.

Another thought I had would be maindecking Jester's Cap, which Yesuphren used to seem to do well with. An activated cap screws Flash, Tog, Bomberman, Long, etc. The only deck that I can think of that it wouldn't be good against would be fish variants.

Unfortunately this list is really tight, so I'm not sure what could be cut. The only thing that immediately comes to mind is smokestack, but I would hate to cut that. Maybe cut a stax and a mask and you could fit in 2 copies of one of them.

Just some thoughts. I haven't tested yet, but I will do so soon.

I have always been a fan of Shop Aggro decks. They're a lot of fun to play, and can do decent in a tournament (I missed top 4 at one of Vroman's power tournaments on tiebreaks with a version of Gilded Claw).

I
I fully agree with this comment. You limit yourself immensely by sticking to one color. A card that I like a lot in this archetype that no one has brought up so far is Bob. He is the perfect card drawing engine for the deck, since he will replenish your hand over time, and beat for 2 at the same time. He is really solid in this deck.

I also think that there are several cards that probably don't fit very well:

Jens will be bad if you switch to 5C, and I'm not sure how good he is in this deck in general
I agree that Cap, F/I, and equipment could probably be filled with better cards.

I think at least a couple of wastelands should be run as well. This deck is just trying to disrupt the opponent long enough to kill them.

I applaud you for continuing to work on this archetype. It makes me really want to start testing it again.