Beckets aren't necessarily that easy to attach. You can add a block to the base of a 6:1 to make it 7:1, and probably your best option, just in case you and your kids get the idea to go check out the fun at a sanctioned event.
how would the line run with this? I am confused because I would love to increase the purchase on my 6.0 (6.1) but don't have any beckets on the blocks now and am not interested in spending 400$ to get new blocks.