Modulation delay for bass

[mao99]

Hi.
I'm new to this forum.

I built Dirtbag deluxe with V3205s and did the suggested mods.
It sounds OK with Tele but slightly distorts with Rickenbacker 4003, especially at short delay setting.

I'm mainly a bass player and looking for a fully-tweekable analog modulation delay for bass.

Can anyone tell me whether 15v/MN3005 version works well for bass?
Or should I wait for  forthcoming Aquaboy Deluxe?