Will higher grade thrusters have any effect if my ship is already below the optimal weight of my current thrusters?

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I'm currently working out a loadout for my Vulture, which is a very light ship with high class (class 5) thrusters. It's a very light ship, weighing in at less than 500 tons at the absolute heaviest (in a very, very ridiculous setup).
Class 5E thrusters have an optimal mass of 560 tons, so even at its heaviest, the vulture is still well within that optimal range. Is there any real benefit to putting 5A thrusters on this ship?
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What is optimal mass?
Optimal mass is the mass at which you get the optimal multiplier and half of the mass is where you get the maximal multiplier. On a ship like the vulture, which has a stupid high optimal mass it doesn't really matter.How do you get enhanced performance thrusters?
Enhanced Performance Thrusters can be purchased at five locations, all of which are Engineer Workshops with access requirements:Space Engineers - Everything you need to know about Thrusters and how many you need on planets.
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