i have done it. maybe a total of 4 inches inside before i gave up. took maybe 15 minutes to get that far. the end result would probably work but probably not at 100% strength as the hollow had some small frays. the 40lb i had also broke right around 40 so do not expect it to over test.
There goes my rat kingfish killer oh so sweet pe3-4 rod with tiny lickle TLCSGs wearing a hyper 4000 running 40lb JB with an elegant end loop onto 30lb twisted leader...........I need another plan and some sleep!