Sean, we were casting them from a boat fishing for Stripers
sean said:
I cast all the same outbound line weights on the same rods overhead. Are you changing fly size? For spey casting though it probably comes down to technique and the shorter lever rods you are using.
It is not the easiest to spey cast those type eight lines as they start sinking quickly and you are getting a lot of stick. It becomes harder the shorter the rod.
-sean
Sean, we were using Meise's Switch rods with some sinking Striper Lures from my boat. The casts were overhead and/or under handed casts.
The California Delta/local River method for fly fishing for Stripers most of the year is to cast as far as you can to the lanes or holding areas and let the sinking line sink until just before or as the fly hits bottom, which is often 10' or deeper. Then, you slowly retrieve the fly until you can see it if the water is clear enough. If nothing is chasing it, you set up the cast with a roll cast. Sometimes you bring the fly right to the side of the boat. Nothing wakes you up any faster than a big Striper running into your boat trying to catch your fly.
With both the 5/6 and 7/8 switch rods with the 6 wt OB type 8 on the 5/6 and the 8 wt OB on the 7/8, neither my friend or I could managed the entire head and a fairly heavy sinking fly. We had to pull in 7 to 8' of the head past the rod tip to even set up the roll cast for the two handed overhead or underhand cast with a quick touch and go of the fly after the roll cast for the two handed version of the haul and cast. Once we pulled in the 7 to 8' of the head past our rod tip, we were very pleased with the results.
Even with my 9/10 switch rod with a one hand Rio 350 grain/26' built in head line, I have to have the beginning of the head at the rod or just inside the rod tip to properly cast a good size sinking fly. I also have the Rio Striper Versa Tip line for this rod. I and my Cro Mag son max out @ about 400 grains casting from our boats and we have to bring the loop where the sinking tip is connected to the rod tip, and these tips are 26' long.
My friend and I used these sinking OBs with these rods in a local lake, to get deep for the trout. To say the least it was a hassle. So we are anxious to try the Skagit 450 with the 7/8 Switch Rod and the 10 wt OB floater with the 5/6 switch rod and some 15 sinking tips, Rio's type 8 12' sinking leaders and some T8 tips from my boat to go deep and floating tips for top water and intermediate action. Skagit casting these shorter rods is a lot easier than hauling the sinking lines around.