Sell my A4 and Sub 37 for a Subsequent 37 CV?

Hey lovely people!

Having thoughts about this trade. My train of thought goes I’m controlling my TTSH from the A4 CV outs, but the arpeggiator leaves much to be wanted. The arpeggiator on the sub 37 is the best I’ve ever played with hands down. Would be great to play the TTSH via keys as well. As it happens now, I use the A4 only occasionally, and I have OT and AR, for other elektron-sequencing. Is this folly or a sound thought??? Cheers