Re: rollcage question - regarding gussets.
I would put them on the spreader bars, horizonally to the ground there. I'd also, put them where the bar do 90* angles, as where the main hoop meets the spreaders or front halo. As for the dash bar, if it gets in your way, the the question might answer itself. I work on a NASCAR short track race team in Denver and we only put the gussetts where the rules or by past experience dictate. I don't think we put them on the dash bars, but we have four door bars on each side that attach to the front supports. As you say your confident in your welding, so, doas your thoughts say, if you think you need them, put `em in. But as a rule of thrumb, when sitting belted into the seat, wave your arms around, and wiggle around, and if your hands or other parts of you body touch a rollbar, <font color="red"> PAD IT WITH SOMETHING </font color> becuase if you can.. now think about a rollover when you're flying around inside. We had a friend build a roll cage for his NASCAR bomber and didn't pad the bar going from the middle of the main hoop to the lower passenger floor board and got hit hard. His head hit the bar and cracked his helmet in half. He was in a coma for about 2 weeks with brain swelling and then, came out of it but, the doctor hasn't released him to race yet. He still has bad head aches every now and then. This wreck happened in `99. Keep it safe out there,