I am going to be buying a pro-made rack soon and think I am going with ARS. Seems like the best deal and really nice looking racks.

I have a 4 story home made melamime rack and I'm not sure if I should get the 7030 ARS or the 3033 one. I guess the 7033 makes more sense since eventually all my BPs will grow up and need that size of a tub , and I can use my hand made rack for hatchlings and any other smallish snakes I get. Though I've never seen an ARS in person I may just be able to slide in a smaller tub in to the rack and problem solved.

Also I dong need grounded wires for an ARS right?

Any idea of when the 34x17 tubs will no longer stress a BP? 500g? 750g?

Thanks
peace