What style fuel line is best?

plain old roll-yur-own 3/8 steel. 400hp streeter. I put a big EFI filter at the right rear corner with screw-on fittings. Then one piece to the pump. Then one-piece to the dual feed for the 750DP.
I have a short jumper at the back by the 3/8 sender/pick-up. another at the pump to supply, and a third shortie at the dual-feed, just to make it quicker to remove the carb. That EFI filter has over 125,000 miles on it........ one of these days I guess I should probably look at it,lol.