It is disappointing to read your fib/flutter is worse than before ablation. In fact, being one who is in afib/aflutter 100% of the time (24/7), your note doesn't encourage me to consider ablation.
I have undergone heart examinations via a catheter leg vein/artery (whatever it is) and have had no problems with that area, so maybe your bleeding was unusual and not to be expected as normal for you.
I realize my input is only slightly connected to your question, but sometime a response helps trigger more responses. I'll put his thread on my "watch list", but doubt that I'll have anything else to offer.
Good luck, hope you get better without any further medical intrusions.