I have seen Alain in concert many time when he was in the band UZEB. This guy was the talk when I was studying Jazz at college. I saw the band in 81. He blew everyone away at that Toronto concert. I would go home and practice for hours after one of their concerts, just couldn't sleep. When he first came on the seen he wasn't even playing the F bass, he was playing some cheapo fretless bass similar looking to a fender with Dimarzio pickups. I do not believe it was an F bass. I think it was a modified bass. The fret board was extended to 3 octaves. For slap/funk, he also used a cheapo bass. For the piccolo sound he used a headless bass can't remember the name of it. He also used i think the Roland synth bass. The guy would solo for days never running out of ideas, never tiring. Uzeb was a hot band, Michel Cusson on guitar was also incredible you should give hom a listen. Alain style for funk/slap is a double thumbing stlyle the difference with him is that he preforms the down and up strokes with such precision that you can't tell which direction his thumb is moving in. Listen to Brass Licks. For finger style as far as I remember he uses 3 fingers of his right hand with great dexterity and accuracy. Honestly I have not heard anyone out there trying to cop his licks and style as many have done with Jaco.
Alain has great licks, motifs and grooves that work in my opinion better that Jaco because Alain has more range and depth and is more practical. Don't forget he also played dance, disco, in his early days.
Alain is an alround bass player, an alround musician.