At my peak I was sub 1.9 on keyboard on 3x3 with the "BLFT" method you describe. LBL is not a viable method for speedsolving but it is one of the most viable compared to other methods I have researched. You can use LBL to one look solves and use efficient LBL-specific moves to create more efficient solutions. The 3x3 loopover is no skill but it is underrated and highly enjoyable even if scramble scumming is required for good averages at the high level.