Sits longer? Why? It's a medium chain fat? But, nonetheless, how much longer? A pro is injecting multiple times with multiple ccs every day. They always have oil in their muscles. How do they have room for Synthol? If they need silica to promote more swelling why don't they make gear using Synthol oil, i.e., MCT.
I'm not sure how much longer but that claim is frequently made, though now that I think about it, others have said MCT oil actually absorbs pretty fast.
See for example:
https://synthetek.com/en/the-science-behind-syntherol/But looking at logs at forums you really, really have to work for it, often with pretty small results. To put that amount of gear into muscles, especially several at a time, would have you taking a ton of gear. Some don't get much out of Synthol apparently. Dusty Hanshaw said he got a lot out of site injects of regulargear into his arms but didn't get anything out of delt injects
I wonder if small amounts of especially unesterified steroids might cause a small local effect due to higher saturation in the muscle injected, though you frequently read recommendations not to combine Synthol (mct) with regular gear, why exactly, I don't know.
I just heard one pro discussing another pro, how he was doing maybe 5 grams of gear a week but in addition shooting Synthol all day long all over his body. This pro I couldn't really tell was a Synthol freak except for his delts which look a bit pointy in certain poses.