I need a new skagit head for my 8-weight Meiser. I have been using an Airflo Skagit Compact 600 on it, and that has been fine. My local shop is out of stock, and they recommended a 600 grain F.I.S.T instead. I mainly fish silvenators and tips about 10-12 feet; usually T-11 or T-14. Will the combination of the F.I.S.T., sink tips, and weighted fly get me into the rock garden too much? I know that is not a simple question, but I am hesitant to make the change as I know how to cast the floater. Thanks.