Over the last few days I have been practicing F2l with no cube rotations at all, I find it make it much much easier to look ahead and I can easily keep track of most I the pairs. Currently my times have got worse, as I am not used to inserting using B, and F. When doing F2l normally I can insert every case blindfolded, but I cannot do this without cube rotations at the moment as it still feels very unnatural. My question is, at the moment I am slower doing it, but obviously if I give it a few weeks I could get better, but is it a just cause? Should I try carry on to be rotation free an do unnatural inserts?