Good first effort, Dennis. But no offense to you (you didn't build the kit!) but I HATE the PSI "Cartridge" kit! It bears about the same relation to a real cartridge as a cigar pen does to a real cigar. My recommendation would be to try a real cartridge pen from Eric (Sylvanite) or several others on this site. Those PSI kits look so fake, because they are...so fake! The reason I singled out Eric's is because they go together so perfectly and are so well made, the instructions are perfect, but then again, it's the only one I've tried.
Just my opinion, take it for what it's worth. But the antler looks good!
Dale