There are 2 decent stick fm radios that i know. the KO vantage esprit II which is equivalent to the KO mars R and the Sanwa/airtronics Super exzes which is a stick form of the M8. most hobby shops can get these in for you. I had ryper hobbies order in the ko for me and it cost me too.
There are 2 other stick fm radios that i know of.they are the futaba 3VC which i know nothing about but can't be too bad being futaba, and the hitec ranger III FM which is extremely basic. ie analogue trims ,3 chanel and no other features. that and it a hitec unit so i won't touch it.
the xs 3 is popular fm for club racing. at precc atleast half the drivers are using the xs3. the next most popular radio would be the ko helio and then the futaba 3pk. aside from me there are 2 others that use the ko vantage esprit. its kind of cheap looking and most people freak when i tell em they go for 500 aussie
Its a current model. ergonomics is fine. there a finger stands on the back for you to rest your fingers. Its a bit on the heavy side but otherwise good. Its also easy on batteries as well. if you go duracells you can go 4 nights of racing easy. I had a sanwa mx3 and duracell would only last one night of racing. I use energiser 1850's nimh cells now anyway so power comsumtion isn't too much of a problem now