In terms of feel/feedback of the 3 strings that I mentioned, IsoSpeed is the 'crispest.' Everyone's definition of that is different when it comes to strings I've found, but with Ichiban and Hexaspin they lose tension so fast it feels like you're hitting stiff strings strung very low. You get the trampoline effect, but there is still that stiff boardy feeling.
With the IsoSpeed, it doesn't lose tension as fast, but it does go dead pretty quickly. In the 5-8 hours that it isn't dead it plays very precise and is very arm friendly. It's still a poly, though. So it's not going to give you the feel a synthetic or multi would. You're still going to get less dwell time and the whole poly shebang.
Recently I've been stretching the amount of time I keep Hexaspin in my racquet. It doesn't play bad towards the end, but in a full bed the ball begins to sail around the 4th-5th time I take it out. With that said, you can still take some pretty big cuts at the ball. I've been hitting it in a hybrid with Tecnifibre Multifeel with some good results. If I'm just rallying then the hybrid breaks around the 4 hour mark, but I think it helps out with control and tension maintenance. I think with the multi, the launch angle off the racquet stays lower than if it was a full bed. With IsoSpeed the launch angle would stay the same throughout the time it was playable. IsoSpeed baseline is just one of those strings that has a "magic window," like RPM and Lux strings. For me that was about 4 hours.