20g?? No wonder your float doesn't sink... I've been using 11g Pikers and that doesn't even get pulled down much, actually considering going down to the 6g tomorrow.
So - that's your secret!!! I'm going to run out and buy some 11 g Pikers right now.
Actually, I do have some, but I'm also matching the weight to the water conditions and casting distance. But your "suggestion" is intriguing.
I got to admit - I love fishing roe, just like I love chironomid fishing with indicators. It is very addicting. As for spinners, I only became successful with them last year using Colorado's under a float. I guess I never really used them until recently. Then there's the fly which is very fun as well. But the roe "take" keeps me coming back for more. Thanks in large part to Stratocaster's instruction on how to cure "coho crack".