Malay is known as Malay, Green Malay and Malaysian Kratom
. The effects are very stimulating. In comparison, Green Malaysian is the Maeng Da on the stimulative side of the spectrum (Maeng Da is much more sedative). Unlike other Green strains such as Green Riau, Green Malay is much "smoother" in terms of stimulation, compared to a cocaine
/caffeinated effect, also known as being "cracked out".
Obviously, depending on biological chemistry, physical weight and historical use of mind altering substances, the average person can be very motivated and "on point" from 4g-7g, with 10g+ becoming quite "itchy". Heavy users who dose 2-3 times a day will want to use 10g for a starting amount. Duration will vary because of obvious reasons, but will typically be between 3hrs-6hrs with higher doses ranging upwards of 8hrs.
Green Malaysian is a wonderful "morning/day" strain affecting your physical endurance, physical/mental motivation, and increasing sociability. Some "thought jumping" may occur while talking with people (user will jump from thought to thought in conversation). I noticed this and feel it may be because of how stimulating the strain is and how fast your thoughts are moving as you try to grasp one or another while delivering them via speech.
Hope this helps!